“The law is good (1 Timothy 1:8).” That short phrase could do a lot of bad theology a lot of good. The law is good, and the gospel is glorious (1 Timothy 1:11); and the gospel’s being glorious doesn’t undo the law’s goodness.
The law is good, if one uses it lawfully. This is like saying that cars are good, if one uses them lawfully. When a drunk, reckless, or irresponsible driver gets behind the wheel, that mass of metal, plastic, oil, and gas becomes a bad thing for humanity; but we don’t outlaw cars. We understand that the problem isn’t the car, but the driver. Likewise, when Paul says the certain persons who are teaching “different doctrine,” want to be “teachers of the law,” we must understand that the problem isn’t the law. Cars are good, but that doesn’t mean we let the immature or blind use them at their leisure. Likewise, when the spiritually blind, or the immature young convert gets behind the wheel of the law all alone, the best place to be is behind them. Young converts have their permits, but they need a mature Christian to teach them how to drive the law. How then should we use the law? Lawfully.
To make the likening more accurate, when Paul says that the law is to be used lawfully, it is like saying that cars are to be used car-fully. Cars are meant to be used as cars, not kamikaze missiles. How was the law to be used? Protestants have long spoken of three uses of the law. The law is a bridle to restrain sin. It is a mirror to show us our sin. And it is a map for the Christian showing them how to live the blessed life. Amen. But there is something more foundational. How does one use the law lawfully? What was the point of the law?
Do not think that I have come to abolish the Law or the Prophets; I have not come to abolish them but to fulfill them. For truly, I say to you, until heaven and earth pass away, not an iota, not a dot, will pass from the Law until all is accomplished. Therefore whoever relaxes one of the least of these commandments and teaches others to do the same will be called least in the kingdom of heaven, but whoever does them and teaches them will be called great in the kingdom of heaven. —Jesus, Matthew 5:17–19
Jesus shows us what the point of the law is—Him. The law was never meant to be used without reference to Jesus. Never! When God gave His good law to his people at Sinai, a lamb had been slain first, redemption out of slavery had already happened, and a promise had been made to Abraham generations before. We should be slow to throw away as unnecessary that which Jesus kept perfectly for our salvation. The law shows us how to love God and love our neighbor. Jesus kept that good law perfectly for us, and bore God’s just wrath for all of our law breaking. If you love Jesus, you will love the law. If you love redemption, you will love the law. If you love grace, you will love the law. You will plead with the psalmist, “graciously teach me your law (Psalm 119:29).” You will exclaim, “Oh how I love your law! It is my meditation all the day (Psalm 119:97).”