VERSE 24. That we might be justified by faith.
The Law is not to teach us another Law. When a person feels the full force of the Law he is likely to think: I have transgressed all the commandments of God; I am guilty of eternal death. If God will spare me I will change and live right from now on. This natural but entirely wrong reaction to the Law has bred the many ceremonies and works devised to earn grace and remission of sins.
The Law means to enlarge my sins, to make me small, so that I may be justified by faith in Christ. Faith is neither law nor word; but confidence in Christ "who is the end of the law." How so is Christ the end of the Law? Not in this way that He replaced the old Law with new laws. Nor is Christ the end of the Law in a way that makes Him a hard judge who has to be bribed by works as the papists teach. Christ is the end or finish of the Law to all who believe in Him. The Law can no longer accuse or condemn them.
But what does the Law accomplish for those who have been justified by Christ? Paul answers this question next.
VERSE 25. But after that faith is come, we are no longer under a schoolmaster.
The Apostle declares that we are free from the Law. Christ fulfilled the Law for us. We may live in joy and safety under Christ. The trouble is, our flesh will not let us believe in Christ with all our heart. The fault lies not with Christ, but with us. Sin clings to us as long as we live and spoils our happiness in Christ. Hence, we are only partly free from the Law. "With the mind I myself serve the law of God; but with the flesh the law of sin." (Romans 7:25.)
As far as the conscience is concerned it may cheerfully ignore the Law. But because sin continues to dwell in the flesh, the Law waits around to molest our conscience. More and more, however, Christ increases our faith and in the measure in which our faith is increased, sin, Law, and flesh subside.
If anybody objects to the Gospel and the sacraments on the ground that Christ has taken away our sins once and for always, you will know what to answer. You will answer: Indeed, Christ has taken away my sins. But my flesh, the world, and the devil interfere with my faith. The little light of faith in my heart does not shine all over me at once. It is a gradual diffusion. In the meanwhile I console myself with the thought that eventually my flesh will be made perfect in the resurrection.
VERSE 26. For we are all the children of God by faith in Christ Jesus.
Paul as a true apostle of faith always has the word "faith" on the tip of his tongue. By faith, says he, we are the children of God. The Law cannot beget children of God. It cannot regenerate us. It can only remind us of the old birth by which we were born into the kingdom of the devil. The best the Law can do for us is to prepare us for a new birth through faith in Christ Jesus. Faith in Christ regenerates us into the children of God. St. John bears witness to this in his Gospel: "As many as received him, to them gave he power to become the sons of God, even to them that believe on his name." (John 1:12.) What tongue of man or angel can adequately extol the mercy of God toward us miserable sinners in that He adopted us for His own children and fellow-heirs with His Son by the simple means of faith in Christ Jesus!