That our spirituality should be guided by faith isn’t necessarily a controversial point among evangelical Christians. Where this becomes controversial, though, is when we extend this logic to chart out how to think about these Presbyterian “quirks.”

The title of this class captures what most people think when they first learn about Sabbatarianism, Psalms-singing, and a rejection of images of Christ, three distinctive areas of Presbyterian piety: That’s quirky! These distinctives raise a lot of questions, and, even with people who have been Christians for a long time, they struggle to understand just why Presbyterians insist on these elements to such a degree.
In many areas, Presbyterians might simply seem traditional in their style. Even if an evangelical Christian prefers more “contemporary” worship styles, musical selections, and creative expressions in their worship services, they probably have some frame of reference to understand a “traditional” style that doesn’t necessarily go in on those approaches to worship. When it comes to these “quirks” however, many evangelical Christians are shocked to learn that Presbyterians consider these issues to be of great moral significance.
This is where we see a difference, then, between a traditional approach to piety and worship, and a confessional Presbyterian approach. These issues are not nostalgic pining for “the good old days,” but deeply formed biblical convictions.
In this class, however, our goal will not be to defend these distinctive beliefs and practices. There are other resources on those issues. In particular, R. Scott Clark has collected a stellar set of resources on the Sabbath, Psalms-singing, and images of Christ.
Instead, in this class, my goal is to offer a positive vision to help you imagine what Reformed and Presbyterian piety and worship might be like if you began to lean into these practices. My goal is that, even if you are not (yet!) persuaded that these practices are biblical, you might at least have a positive imagination about how these practices might reform your relationship with God. Or, at the very least, I hope that after this class you won’t find these beliefs and practices so quirky!
The Foundation: A Biblical and Spiritual Piety
The biblical foundation for this approach is in 2 Corinthians 5:7: “for we walk by faith, not by sight.” This verse captures not merely an encouragement that there is a world beyond this life that we cannot see; more, it captures an entire ethos for living. John Owen writes this:
There are, therefore, two ways or degrees of beholding the glory of Christ, which are constantly distinguished in the Scripture. The one is by faith in this world, which is ‘the evidence of things not seen’; the other is by sight, or immediate vision in eternity, ‘We walk by faith and not by sight’ (2 Cor. 5:7)….No man shall ever behold the glory of Christ by sight hereafter, who does not in some measure behold it by faith here in this world. Grace is a necessary preparation for glory, and faith for sight.1
If the essence of Christian piety is to behold the glory of God in the face of Jesus Christ (2 Cor. 4:6), this is something that is (1) by faith, (2) spiritual—that is, by the Spirit, and (3) through the Word of God. That is, our spirituality is guided not by what we can see, but by faith in God’s Word.
That our spirituality should be guided by faith isn’t necessarily a controversial point among evangelical Christians. Where this becomes controversial, though, is when we extend this logic to chart out how to think about these Presbyterian “quirks.”
The Sabbath
I’d like to draw our attention to two important and surprising texts about the Sabbath. First:
[12] And the LORD said to Moses, [13] “You are to speak to the people of Israel and say, ‘Above all you shall keep my Sabbaths, for this is a sign between me and you throughout your generations, that you may know that I, the LORD, sanctify you. [14] You shall keep the Sabbath, because it is holy for you. Everyone who profanes it shall be put to death. Whoever does any work on it, that soul shall be cut off from among his people. [15] Six days shall work be done, but the seventh day is a Sabbath of solemn rest, holy to the LORD. Whoever does any work on the Sabbath day shall be put to death. [16] Therefore the people of Israel shall keep the Sabbath, observing the Sabbath throughout their generations, as a covenant forever. [17] It is a sign forever between me and the people of Israel that in six days the LORD made heaven and earth, and on the seventh day he rested and was refreshed.’” (Ex. 31:12–17)
When the Lord insists that his people keep the Sabbath, he does so by insisting that the Sabbath is a sign. A sign is something visible that points us to something else—in this case, to something invisible. Specifically, the Lord teaches that the Sabbath is a (visible) sign that he (invisibly) sanctifies us.
Sabbath-keeping, then, is a sign about our spirituality, but not a sign of what we are doing for God. That is, Sabbath-keeping is not a weekly method for virtue signaling (“I thank you, Lord, that I’m not like those immoral people who don’t keep Sabbath!”). Rather, Sabbath-keeping is a sign of what God does for us. We rest as a testimony to the watching world of what God is doing in and through us, to sanctify us. It is a powerful reminder amongst ourselves, as well as to the watching world, that we cease from work because we believe that God is at work (John 5:17).
The second text is an important corollary:
[13] “If you turn back your foot from the Sabbath, from doing your pleasure on my holy day, and call the Sabbath a delight and the holy day of the LORD honorable; if you honor it, not going your own ways, or seeking your own pleasure, or talking idly; [14] then you shall take delight in the LORD, and I will make you ride on the heights of the earth; I will feed you with the heritage of Jacob your father, for the mouth of the LORD has spoken.” (Is. 58:13–14)
God teaches us that we learn to delight in him by learning to delight in his Sabbath. That is, the Sabbath is a means of God’s grace toward us. As a sign, the Sabbath proclaims to the watching world that God is sanctifying us. But, as a means of grace, the Sabbath is the venue in which God teaches us to delight in him.
It is in this context that we must understand the strict limitations for the Lord’s Day:
WLC Q. 117. How is the sabbath or the Lord’s day to be sanctified?
A. The sabbath or Lord’s day is to be sanctified by an holy resting all the day, not only from such works as are at all times sinful, but even from such worldly employments and recreations as are on other days lawful; and making it our delight to spend the whole time (except so much of it as is to be taken up in works of necessity and mercy) in the public and private exercises of God’s worship: and, to that end, we are to prepare our hearts, and with such foresight, diligence, and moderation, to dispose and seasonably dispatch our worldly business, that we may be the more free and fit for the duties of that day.
We are to spend the entire Lord’s day in public and private exercises of worship—and we are to duly prepare our hearts and our affairs to enter into that worship as much as possible—not to restrict ourselves. Rather, the Lord’s Day is an invitation to delight in the Lord by worshiping him. This delight isn’t in something that is material,  visible, or earthly, but in something that is spiritual, invisible, and heavenly.
As Thomas Boston observes, those who live according to the flesh choke on this spiritual delicacy of the Sabbath:
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The very bad news of the gospel regarding the sinner’s hopeless and diabolical situation is more than matched and surpassed by the very good news of the gospel that speaks of the incredible saving power of God. It is the power to transform us into forgiven saints with the righteousness of Christ imputed to us, and the power to enable us to live a life that is pleasing to him. All this has nothing to do with self-improvement and everything to do with the matchless grace of God.

Mankind’s greatest and most urgent need is to get right with God. That of course presupposes that we are NOT now right with God. We are sinners who live in alienation from and hostility to God. The whole point of the life and work of Christ was to make a way for lost sinners to be reconciled to a holy and just God.
But we must be clear as to what biblical conversion is all about. And that means being clear about our condition as sinners and our complete inability to save ourselves and turn our lives around. Since I am again reading through Jeremiah, I recently came upon a familiar passage found there. Jer. 13:23 says this: “Can an Ethiopian change his skin or a leopard its spots? Neither can you do good who are accustomed to doing evil.”
Our condition as sinners is one of utter hopelessness and inability. Consider some of the things the New Testament says about who we are as sinners and what we are like as sinners:
-spiritually sick (Luke 5:31-32)-rebellious children (Luke 15:11-32)-lost (Luke 19:10)-enslaved (John 8:34)-in darkness (Acts 26:18)-remain in darkness (John 12:46)-under the power of Satan (Acts 26:18)-God’s enemies (Romans 5:10)-slaves to sin (Romans 6:22)-influenced and led astray to mute idols (1 Corinthians 12:2)-spiritually blind (2 Corinthians 4:4-6)-God’s enemies (2 Corinthians 5:18-19)-slaves to those who by nature are not gods (Galatians 4:8)-dead in your transgressions and sins (Ephesians 2:1)-objects of wrath (Ephesians 2:3)-dead in transgressions (Ephesians 2:5)-darkened in their understanding (Ephesians 4:18)-separated from the life of God (Ephesians 4:18)-darkness (Ephesians 5:8)-in the dominion of darkness (Colossians 1:13)-alienated from God (Colossians 1:21)-his enemies (Colossians 1:21)-idol worshippers (1 Thessalonians 1:9)-held in slavery (Hebrews 2:15)-not a people; who had not received mercy (1 Peter 2:10)-sheep going astray (1 Peter 2:25)
That is quite a list. It is a damning indictment of those who we are without Christ – which is all of us. And that is why Scripture speaks about what it is like to have a real, God-given conversion:
-We are moved from death to life.-We are moved from darkness to light.-We are moved from the kingdom of Satan to the kingdom of God.-We are moved from bondage to liberty.-We are moved from slaves to sons.-We are moved from being enemies of God to friends of God.
So a radical change takes place when the sinner is converted. It has to be radical: we are talking about bringing spiritual life to dead men and women. And that is why the Apostle Paul for example speaks about the power of God when it comes to the conversion of sinners.
As he said in Romans 1:16: “For I am not ashamed of the gospel, for it is the power of God for salvation to everyone who believes, to the Jew first and also to the Greek.” The word for power (dunamis) is used two other times in this chapter: in v. 4 which discusses God’s power in raising Jesus from the dead, and v. 20 which speaks of God’s power in creating the world.
Many Christian commentators could be mentioned here who have spoken to these truths. C. S. Lewis for example said this: “Fallen man is not simply an imperfect creature who needs improvement: he is a rebel who must lay down his arms.” And again: “Conversion requires an alteration of the will which does not occur without the intervention of the supernatural.”
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Jesus both provoked the world to the ultimate sin and then stepped in the path of that wrath. He came at the right time just when the priestly people who had been given the covenant law had become the worst offenders. He literally came on Judgment Day. And the only reason there is a world of human beings today is because that judgment fell on him instead of the ones who deserved it. 
Paul writes to the Romans in what may seem almost an off-hand comment: “For while we were still weak, at the right time Christ died for the ungodly” (Romans 5:6 ESV; emphasis added).
This verse starkly shows that Paul, at times, can refer to the flow of human history as a collective pronoun. “We” were weak in the beginning of the first century, and then Christ died for us. Many Christians have conversion stories whereby they learned what Jesus did for them, repented and entrusted themselves to Him, and were empowered by the Holy Spirit to walk in newness of life. That is a fruitful analogy, but Paul obviously isn’t talking about what happened in all Christian biographies. He is talking about what God and Jesus Christ did in human history at the crucifixion.
And this passage tells us not only that Christ died in human history but that he did so “at the right time” in human history.
What was it about what we now know as the First Century AD (which is also the common era, but that designation remain dependent on the work of Our Lord) that made it appropriate for Christ to be born, live, die, rise, ascend to the throne, and pour out the Holy Spirit?
Paul repeatedly makes this claim about the timing of redemption is Christ:

“In the same way we also, when we were children, were enslaved to the elementary principles of the world. But when the fullness of time had come, God sent forth his Son, born of woman, born under the law, to redeem those who were under the law, so that we might receive adoption as sons” (Galatians 4:3-5 ESV).
“…making known to us the mystery of his will, according to his purpose, which he set forth in Christ as a plan for the fullness of time, to unite all things in him, things in heaven and things on earth” (Ephesians 1:9–10 ESV).
“For there is one God, and there is one mediator between God and men, the man Christ Jesus, who gave himself as a ransom for all, which is the testimony given at the proper time” (1 Timothy 2:5–6 ESV).
“Paul, a servant of God and an apostle of Jesus Christ, for the sake of the faith of God’s elect and their knowledge of the truth, which accords with godliness, in hope of eternal life, which God, who never lies, promised before the ages began and at the proper time manifested in his word through the preaching with which I have been entrusted by the command of God our Savior” (Titus 1:1–3 ESV).

So there are many reasons to ask the question: What was so important about the timing of Jesus’ mission? What made that point in human history “the fullness of time” and “the proper time”?
Perhaps it might help us to answer that question if we developed curiosity about another question. Maybe the real question should be: What delayed Jesus so long in human history? Maybe we ought to expect that there must have been something proper about the time of the incarnation and the work of Christ. Or rather, that there must have been some good reason for the delay. Without an explanation for the thousands of years between Genesis 3 and the Gospels, John 3:16 becomes rather confusing. “For God so loved the world, that” thousands of years later “he gave his only Son, that whoever believes in him should not perish but have eternal life.”
Why the wait?
Consider the synoptic Gospels.
Jesus declared that the sins of Israel were reaching a climax in his own death. In the parable of the tenants and the vineyard (Matthew 21:33–46; Mark 12:1–12; Luke 20:9–19), Jesus described his impending murder as the final climactic sin in Israel’s history, the one that will mean “the kingdom of God will be taken away from you and given to a people producing its fruits” (Matthew 21:41). Of course, this death is, in fact, the action that will provide for a New Covenant that involves forgiveness of many, as Jesus signified in the establishment of the Lord’s supper (Matthew 26:28). So this murder, while bringing wrath on those who remain in unbelief, also provides the salvation for all who believe.
Again, this isn’t presented as a simple one-time sin. It is presented in the parable as the climactic sin that builds on a repeated history. In Matthew 23, the point is a bit more obscure because Jesus includes the persecution of his followers along with his own suffering at the hands of the unbelieving rulers in Jerusalem. But nevertheless, Jesus is again warning them that they are culminating a historic pattern of sin.
Fill up, then, the measure of your fathers. You serpents, you brood of vipers, how are you to escape being sentenced to hell? Therefore I send you prophets and wise men and scribes, some of whom you will kill and crucify, and some you will flog in your synagogues and persecute from town to town, so that on you may come all the righteous blood shed on earth, from the blood of righteous Abel to the blood of Zechariah the son of Barachiah, whom you murdered between the sanctuary and the altar. Truly, I say to you, all these things will come upon this generation (Matthew 23:32–36 ESV).
The plain reading of these texts is that the rejection of Christ (and his followers) was not an isolated incident. It was a climactic sin that fulfilled a practice that Israel had long engage in. And this sin was serious not only because of who Jesus was, but because it showed they were doubling down on their worst behavior. “Then the owner of the vineyard said, ‘What shall I do? I will send my beloved son; perhaps they will respect him.’ But when the tenants saw him, they said to themselves, ‘This is the heir. Let us kill him, so that the inheritance may be ours’” (Luke 20:13–14 ESV). They were presuming on the riches of his kindness and forbearance and patience, not knowing that God’s kindness was meant to lead them to repentance. Because of their hard and impenitent heart they were storing up wrath for themselves on the day of wrath when God’s righteous judgment would be revealed.
God Meant It for Good
This might be a good place to briefly consider the mystery of predestination. God was repeatedly merciful to Israel. Though he slew the Exodus generation in the wilderness, that was a mere chastisement. When he was really angry he wiped out entire family lines. In this case, he saved all their children.
He constantly forgave Israel in the time of the Judges. When the sins of Eli and his sons caused the ark to be taken into captivity, damaging Tabernacle worship beyond repair, He gave them a new place of worship and a new system of government (Temple and the Monarchy).
And when they sinned to the point that the Temple was destroyed and God sent them into exile, seventy years later God brought them back to their land in a greater way. They had a new Temple and new international influence as a people both in the Promised Land and throughout the empires. Where sin increased, grace abounded all the more.
But when Jesus began his ministry, Israel, having sinned against the grace of restoration from exile, was now more debauched than ever. The prophet Zachariah was shown a vision of Israel being cleansed of demonic possession at the return from exile in a kind of inversion of Ezekiel’s glory cloud (Ezekiel 1) involving an anti-ark of the Covenant:
Then the angel who talked with me came forward and said to me, “Lift your eyes and see what this is that is going out.” And I said, “What is it?” He said, “This is the basket that is going out.” And he said, “This is their iniquity in all the land.” And behold, the leaden cover was lifted, and there was a woman sitting in the basket! And he said, “This is Wickedness.” And he thrust her back into the basket, and thrust down the leaden weight on its opening. Then I lifted my eyes and saw, and behold, two women coming forward! The wind was in their wings. They had wings like the wings of a stork, and they lifted up the basket between earth and heaven. Then I said to the angel who talked with me, “Where are they taking the basket?” He said to me, “To the land of Shinar, to build a house for it. And when this is prepared, they will set the basket down there on its base.”Zechariah 5:5–11 ESV
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