New Revised Standard Version
He received the sign of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised. The purpose was to make him the ancestor of all who believe without being circumcised and who thus have righteousness reckoned to them,

Contemporary English Version
Abraham let himself be circumcised to show he had been accepted because of his faith even before he was circumcised. This makes Abraham the father of all who are acceptable to God because of their faith, even though they are not circumcised.

New American Bible
And he received the sign of circumcision as a seal on the righteousness received through faith while he was uncircumcised. Thus he was to be the father of all the uncircumcised who believe, so that to them [also] righteousness might be credited,

Douay-Rheims Bible
And he received the sign of circumcision, a seal of the justice of the faith which he had, being uncircumcised: that he might be the father of all them that believe, being uncircumcised: that unto them also it may be reputed to justice:

And he received the sign of circumcision, a seal of the justice of the faith which he had, being uncircumcised: that he might be the father of all them that believe, being uncircumcised: that unto them also it may be reputed to justice:

the sign.

Genesis 17:10 This is my covenant which you shall observe between me and you, and thy seed after thee: All the male-kind of you shall be circumcised.

Exodus 12:13 And the blood shall be unto you for a sign in the houses where you shall be; and I shall see the blood, and shall pass over you; and the plague shall not be upon you to destroy you, when I shall strike the land of Egypt.

Exodus 31:13,17 Speak to the children of Israel, and thou shalt say to them: See that you keep my sabbath; because it is a sign between me and you in your generations that you may know that I am the Lord, who sanctify you. . . .

Ezekiel 20:12,20 Moreover I gave them also my sabbaths, to be a sign between me and them: and that they might know that I am the Lord that sanctify them. . . .

a seal.

Romans 2:28,29 For it is not he is a Jew, who is so outwardly: nor is that circumcision which is outwardly in the flesh. . . .

Deuteronomy 30:6 The Lord thy God will circumcise thy heart, and the heart of thy seed: that thou mayst love the Lord thy God with all thy heart and with all thy soul, that thou mayst live.

2 Corinthians 1:22 Who also hath sealed us and given the pledge of the Spirit in our hearts.

Ephesians 1:13 In whom you also, after you had heard the word of truth (the gospel of your salvation), in whom also believing, you were signed with the holy Spirit of promise.

Ephesians 4:30 And grieve not the holy Spirit of God: whereby you are sealed unto the day of redemption.

Revelation 9:4 And it was commanded them that they should not hurt the grass of the earth nor any green thing nor any tree: but only the men who have not the sign of God on their foreheads.

righteousness.

Romans 4:13 For not through the law was the promise to Abraham or to his seed, that he should be heir of the world: but through the justice of faith.

Romans 3:22 Even the justice of God, by faith of Jesus Christ, unto all, and upon all them that believe in him: for there is no distinction.

Romans 9:30 What then shall we say? That the Gentiles who followed not after justice have attained to justice, even the justice that is of faith.

Romans 10:6 But the justice which is of faith, speaketh thus: Say not in thy heart: Who shall ascend into heaven? That is to bring Christ down;

Galatians 5:5 For we in spirit, by faith, wait for the hope of justice.

Philippians 3:9 And may be found in him, not having my justice, which is of the law, but that which is of the faith of Christ Jesus, which is of God: justice in faith.

Hebrews 11:7 By faith Noe, having received an answer concerning those things which as yet were not seen, moved with fear, framed the ark for the saving of his house: by the which he condemned the world and was instituted heir of the justice which is by faith.

2 Peter 1:1 Simon Peter, servant and apostle of Jesus Christ: to them that have obtained equal faith with us in the justice of our God and Saviour Jesus Christ.

father.

Romans 4:12,16-18 And he might be the father of circumcision; not to them only that are of the circumcision, but to them also that follow the steps of the faith that is in the uncircumcision of our father Abraham. . . .

Romans 3:22,26 Even the justice of God, by faith of Jesus Christ, unto all, and upon all them that believe in him: for there is no distinction. . . .

Romans 9:6,33 Not as though the word of God hath miscarried. For all are not Israelites that are of Israel. . . .

Romans 10:4,11 For the end of the law is Christ: unto justice to everyone that believeth. . . .

Matthew 8:11 And I say to you that many shall come from the east and the west, and shall sit down with Abraham, and Isaac and Jacob in the kingdom of heaven:

Matthew 16:16 Simon Peter answered and said: Thou art Christ, the Son of the living God.

Luke 19:9 Jesus said to him: This day is salvation come to this house, because he also is a son of Abraham.

John 3:15,16,36 That whosoever believeth in him may not perish, but may have life everlasting. . . .

John 6:35,40,40,47 And Jesus said to them: I am the bread of life. He that cometh to me shall not hunger: and he that believeth in me shall never thirst. . . .

John 7:38,39 He that believeth in me, as the scripture saith: Out of his belly shall flow rivers of living water. . . .

John 8:33 They answered him: We are the seed of Abraham: and we have never been slaves to any man. How sayest thou: You shall be free?

John 11:25,26 Jesus said to her: I am the resurrection and the life: he that believeth in me, although he be dead, shall live: . . .

Galatians 3:7,22,29 Know ye, therefore, that they who are of faith, the same are the children of Abraham. . . .

Galatians 6:16 And whosoever shall follow this rule, peace on them and mercy: and upon the Israel of God.

that righteousness.

Romans 4:6 As David also termeth the blessedness of a man to whom God reputeth justice without works: