19Why then the law? It was added because of transgressions, until the offspring should come to whom the promise had been made and it was put in place through the angels by an intermediary. 20 Now an intermediary implies more than one, but God is one.
21 is the law then contrary to the promises of God? Certainly not! For if a law had been given that could give life, then righteousness would indeed be by the law. 22 But the Scripture imprisoned everything under sin, so that the promise by faith in Jesus Christ might be given to those who believe.
If the Law does not supersede the covenant previously established and does not save the soul of those who are placed under it, then why does it exist? Why would God put in place a regulation that does nothing other than reveal sin? It is precisely for that reason that God put the law in place. For revelation. God put the law in place to reveal our sinfulness.
The law of God was given because sin exists. The law is merely a lens by which we are able to see and acknowledge that we have sinned against the perfect and holy God. Without the law, we would remain ignorant of our folly and persist in death, not recognizing our inabilities and inadequacies. Yet God, in His infinite mercy, gives mankind a law so that we would be aware of our transgression. In other words, the law exists to give name to sin. It is an identifier, a name tag. It proclaims aloud what is implicit in nature. The law reveals and exposes our desperate state and need for redemption.
The redemption from the law comes when Jesus, “the offspring,” comes and claims the promise mentioned in the covenant with Abraham. In essence, Paul is arguing that salvation is provided by Jesus who fulfills the original covenant with Abraham AND does so without transgression. So, when Jesus comes, the law is fulfilled and the promise of blessing and salvation are met and manifest in Him by His work. His life provides the fulfillment of the law, not the nullification. Indeed, the law is not nullified because it is merely a lens by which to see what already exists. Jesus does not nullify the lens, but lives perfectly within it (1 Peter 2:22; 2 Cor. 5:21; and Heb. 4:15). As the perfect intermediary, He then claims the promises previously established.
The beauty of grace is that it requires only God to arbitrate and mediate. There is only one intermediary. That intermediary is Jesus. When a law is established, there are always two parties. Both parties must keep the terms of the law. If one breaks the law, the contract is undone. Such is the nature of law. But Jesus comes by promise, not law. A promise only depends on one party to keep. God is one! God keeps His promises and Jesus is the fulfillment of that promise.
Consider this great truth, Christian. No amount of sin or wretchedness can nullify the promise of God because the promise does not depend on you or your works. It is totally dependant on His character… What a wonderful character that is! Perfectly holy! Completely loving! Absolutely sovereign! Unshakably constant! This the God upon whom grace is dependent! He will not fail and His promises are sure! You cannot undo it, because you didn’t commission the promise. You cannot fail to achieve it because He has already achieved it for you. You cannot lose it because He has already secured it! In Jesus, we are granted grace by a perfect mediator who fulfills the law and then secures the promise! Praise God for such mercy!
Reading of such an overwhelming grace, one would expect the answer in response to be that Grace is contrary to the law. Yet Paul answers, “Certainly not!” (v. 21). The law has a different function than grace, but not incompatible. Indeed, the law exists to drive everyone to see their need for grace. The law points all mankind to their desperate need for grace and mercy in Christ. The law recorded in the Scripture imprisoned everything so that the promise of Jesus could be secured to all who would believe.
Would you believe? Would you in this moment as you read, surrender to the truth that Jesus Christ is the savior of the world and He will save you if you trust in Him and the security of His promises.