New Revised Standard Version
Why then the law? It was added because of transgressions, until the offspring would come to whom the promise had been made; and it was ordained through angels by a mediator.

Contemporary English Version
What is the use of the Law? It was given later to show that we sin. But it was only supposed to last until the coming of that descendant who was given the promise. In fact, angels gave the Law to Moses, and he gave it to the people.

New American Bible
Why, then, the law? It was added for transgressions, until the descendant came to whom the promise had been made; it was promulgated by angels at the hand of a mediator.

Douay-Rheims Bible
Why then was the law? It was set because of transgressions, until the seed should come to whom he made the promise, being ordained by angels in the hand of a mediator.

Why then was the law? It was set because of transgressions, until the seed should come to whom he made the promise, being ordained by angels in the hand of a mediator.

then.

Romans 3:1,2 What advantage then hath the Jew: or what is the profit of circumcision? . . .

Romans 7:7-13 What shall we say, then? Is the law sin? God forbid! But I do not know sin, but by the law. For I had not known concupiscence, if the law did not say: Thou shalt not covet. . . .

It was added.

Galatians 3:21-24 Was the law then against the promises of God: God forbid! For if there had been a law given which could give life, verily justice should have been by the law. . . .

Deuteronomy 4:8,9 For what other nation is there so renowned that hath ceremonies, and just judgments, and all the law, which I will set forth this day before our eyes? . . .

Psalm 147:19,20 Who declareth his word to Jacob: his justices and his judgments to Israel. . . .

Luke 16:31 And he said to him: If they hear not Moses and the prophets, neither will they believe, if one rise again from the dead.

John 5:45-47 Think not that I will accuse you to the Father. There is one that accuseth you, Moses, in whom you trust. . . .

John 15:22 If I had not come and spoken to them, they would not have sin: but now they have no excuse for their sin.

Romans 2:13 For not the hearers of the law are just before God: but the doers of the law shall be justified.

Romans 3:19,20 Now we know that what things soever the law speaketh, it speaketh to them that are in the law: that every mouth may be stopped and all the world may be made subject to God. . . .

Romans 4:15 For the law worketh wrath. For where there is no law, neither is there transgression.

Romans 5:20,21 Now the law entered in that sin might abound. And where sin abounded, grace did more abound. . . .

Romans 7:7-13 What shall we say, then? Is the law sin? God forbid! But I do not know sin, but by the law. For I had not known concupiscence, if the law did not say: Thou shalt not covet. . . .

1 Timothy 1:8,9 But we know that the law is good, if a man use it lawfully. . . .

till.

Galatians 3:16,25 To Abraham were the promises made and to his seed. He saith not: And to his seeds as of many. But as of one: And to thy seed, which is Christ. . . .

Galatians 4:1-4 As long as the heir is a child, he differeth nothing from a servant, though he be lord of all, . . .

by.

Deuteronomy 33:2 And he said: The Lord came from Sinai, and from Seir he rose up to us: he hath appeared from mount Pharan, and with him thousands of saints. In his right hand a fiery law.

Acts 7:53 Who have received the law by the disposition of angels and have not kept it.

Hebrews 2:2,5 For if the word spoken by angels became steadfast and every transgression and disobedience received a just recompense of reward: . . .

in.

Exodus 20:19-22 Saying to Moses: Speak thou to us, and we will hear: let not the Lord speak to us, lest we die. . . .

Exodus 24:1-12 And he said to Moses: Come up to the Lord, thou, and Aaron, Nadab and Abiu, and seventy of the ancients of Israel, and you shall adore afar off. . . .

Exodus 34:27-35 And the Lord said to Moses: Write thee these words, by which I have made a covenant both with thee and with Israel. . . .

Leviticus 15:32 This is the law of him that hath the issue of seed, and that is defiled by copulation.

Deuteronomy 5:5,22-33 I was the mediator and stood between the Lord and you at that time, to shew you his words, for you feared the fire, and went not up into the mountain, and he said: . . .

Deuteronomy 9:13-20,25-29 And again the Lord said to me: I see that this people is stiffnecked: . . .

Deuteronomy 18:15-19 The Lord thy God will raise up to thee a PROPHET of thy nation and of thy brethren like unto me: him thou shalt hear: . . .

Psalm 106:23 And he said that he would destroy them: had not Moses his chosen stood before him in the breach: To turn away his wrath, lest he should destroy them.

John 1:17 For the law was given by Moses: grace and truth came by Jesus Christ.

Acts 7:38 This is he that was in the church in the wilderness, with the angel who spoke to him on Mount Sina and with our fathers. Who received the words of life to give unto us.

The Apostle, having just before been speaking of the promise made to Abraham, and representing that as the rule of our justification, and not the law, lest they should think he derogated too much from the law, and thereby rendered it useless--he thence takes occasion to discourse of the design and tendency of it, and to acquaint us for what purposes it was given.