Commentary on the Epistle to the Galatians

by Martin Luther

VERSE 19. And it was ordained by angels in the hand of a mediator.

The Apostle digresses a little from his immediate theme. Something occurred to him and he throws it in by the way. It occurred to him that the Law differs from the Gospel in another respect, in respect to authorship. The Law was delivered by the angels, but the Gospel by the Lord Himself. Hence, the Gospel is superior to the Law, as the word of a lord is superior to the word of his servant.

The Law was handed down by a being even inferior to the angels, by a middleman named Moses. Paul wants us to understand that Christ is the mediator of a better testament than mediator Moses of the Law. Moses led the people out of their tents to meet God. But they ran away. That is how good a mediator Moses was.

Paul says: "How can the Law justify when that whole sanctified people of Israel and even mediator Moses trembled at the voice of God? What kind of righteousness do you call that when people run away from it and hate it the worst way? If the Law could justify, people would love the Law. But look at the children of Israel running away from it."

The flight of the children of Israel from Mount Sinai indicates how people feel about the Law. They don't like it. If this were the only argument to prove that salvation is not by the Law, this one Bible history would do the work. What kind of righteousness is this law-righteousness when at the commencement exercises of the Law Moses and the scrubbed people run away from it so fast that an iron mountain, the Red Sea even, could not have stopped them until they were back in Egypt once again? If they could not hear the Law, how could they ever hope to perform the Law?

If all the world had stood at the mountain, all the world would have hated the Law and fled from it as the children of Israel did. The whole world is an enemy of the Law. How, then, can anyone be justified by the Law when everybody hates the Law and its divine author?

All this goes to show how little the scholastics know about the Law. They do not consider its spiritual effect and purpose, which is not to justify or to pacify afflicted consciences, but to increase sin, to terrify the conscience, and to produce wrath. In their ignorance the papists spout about man's good will and right judgment, and man's capacity to perform the Law of God. Ask the people of Israel who were present at the presentation of the Law on Mount Sinai whether what the scholastics say is true. Ask David, who often complains in the Psalms that he was cast away from God and in hell, that he was frantic about his sin, and sick at the thought of the wrath and judgment of God. No, the Law does not justify.

VERSE 20. Now a mediator is not a mediator of one.

Here the Apostle briefly compares the two mediators: Moses and Christ. "A mediator," says Paul, "is not a mediator of one." He is necessarily a mediator of two: The offender and the offended. Moses was such a mediator between the Law and the people who were offended at the Law. They were offended at the Law because they did not understand its purpose. That was the veil which Moses put over his face. The people were also offended at the Law because they could not look at the bare face of Moses. It shone with the glory of God. When Moses addressed the people he had to cover his face with that veil of his. They could not listen to their mediator Moses without another mediator, the veil. The Law had to change its face and voice. In other words, the Law had to be made tolerable to the people.

Thus covered, the Law no longer spoke to the people in its undisguised majesty. It became more tolerable to the conscience. This explains why men fail to understand the Law properly, with the result that they become secure and presumptuous hypocrites. One of two things has to be done: Either the Law must be covered with a veil and then it loses its full effectiveness, or it must be unveiled and then the full blast of its force kills. Man cannot stand the Law without a veil over it. Hence, we are forced either to look beyond the Law to Christ, or we go through life as shameless hypocrites and secure sinners.