Genesis 17:12-13
Generation after generation, every male must be circumcised when he is eight days old, including those born in your household and those purchased from a foreigner—even those who are not your offspring. / Whether they are born in your household or purchased, they must be circumcised. My covenant in your flesh will be an everlasting covenant.

Leviticus 22:11
But if a priest buys a slave with his own money, or if a slave is born in his household, that slave may eat his food.

Numbers 9:14
If a foreigner dwelling among you wants to observe the Passover to the LORD, he is to do so according to the Passover statute and its ordinances. You are to apply the same statute to both the foreigner and the native of the land.’”

Deuteronomy 16:11-12
and you shall rejoice before the LORD your God in the place He will choose as a dwelling for His Name—you, your sons and daughters, your menservants and maidservants, and the Levite within your gates, as well as the foreigner, the fatherless, and the widows among you. / Remember that you were slaves in Egypt, and carefully follow these statutes.

Joshua 5:2-9
At that time the LORD said to Joshua, “Make flint knives and circumcise the sons of Israel once again.” / So Joshua made flint knives and circumcised the sons of Israel at Gibeath-haaraloth. / Now this is why Joshua circumcised them: All those who came out of Egypt—all the men of war—had died on the journey in the wilderness after they had left Egypt. ...

Isaiah 56:6-7
And the foreigners who join themselves to the LORD to minister to Him, to love the name of the LORD, and to be His servants—all who keep the Sabbath without profaning it and who hold fast to My covenant— / I will bring them to My holy mountain and make them joyful in My house of prayer. Their burnt offerings and sacrifices will be accepted on My altar, for My house will be called a house of prayer for all the nations.”

Ezekiel 44:9
This is what the Lord GOD says: No foreigner uncircumcised in heart and flesh may enter My sanctuary—not even a foreigner who lives among the Israelites.

Acts 10:34-35
Then Peter began to speak: “I now truly understand that God does not show favoritism, / but welcomes those from every nation who fear Him and do what is right.

Romans 2:28-29
A man is not a Jew because he is one outwardly, nor is circumcision only outward and physical. / No, a man is a Jew because he is one inwardly, and circumcision is a matter of the heart, by the Spirit, not by the written code. Such a man’s praise does not come from men, but from God.

1 Corinthians 7:18-19
Was a man already circumcised when he was called? He should not become uncircumcised. Was a man still uncircumcised when called? He should not be circumcised. / Circumcision is nothing and uncircumcision is nothing. Keeping God’s commandments is what counts.

Galatians 5:6
For in Christ Jesus neither circumcision nor uncircumcision has any value. What matters is faith expressing itself through love.

Ephesians 2:11-13
Therefore remember that formerly you who are Gentiles in the flesh and called uncircumcised by the so-called circumcision (that done in the body by human hands)— / remember that at that time you were separate from Christ, alienated from the commonwealth of Israel, and strangers to the covenants of the promise, without hope and without God in the world. / But now in Christ Jesus you who once were far away have been brought near through the blood of Christ.

Colossians 3:11
Here there is no Greek or Jew, circumcised or uncircumcised, barbarian, Scythian, slave, or free, but Christ is all and is in all.

Genesis 34:14-17
“We cannot do such a thing,” they said. “To give our sister to an uncircumcised man would be a disgrace to us. / We will consent to this on one condition, that you become circumcised like us—every one of your males. / Then we will give you our daughters and take your daughters for ourselves. We will dwell among you and become one people. ...

Exodus 4:24-26
Now at a lodging place along the way, the LORD met Moses and was about to kill him. / But Zipporah took a flint knife, cut off her son’s foreskin, and touched it to Moses’ feet. “Surely you are a bridegroom of blood to me,” she said. / So the LORD let him alone. (When she said, “bridegroom of blood,” she was referring to the circumcision.)