Genesis 21:4

21:4 When his son Isaac was eight days old, Abraham circumcised him just as God had commanded him to do.

Leviticus 12:3

12:3 On the eighth day the flesh of his foreskin must be circumcised.

Luke 1:59

1:59 On the eighth day they came to circumcise the child, and they wanted to name him Zechariah after his father.

Luke 2:21

2:21 At the end of eight days, when he was circumcised, he was named Jesus, the name given by the angel before he was conceived in the womb.

John 7:22-23

7:22 However, because Moses gave you the practice of circumcision (not that it came from Moses, but from the forefathers), you circumcise a male child on the Sabbath. 7:23 But if a male child is circumcised on the Sabbath so that the law of Moses is not broken, why are you angry with me because I made a man completely well on the Sabbath?

Acts 7:8

7:8 Then God gave Abraham the covenant of circumcision, and so he became the father of Isaac and circumcised him when he was eight days old, and Isaac became the father of Jacob, and Jacob of the twelve patriarchs.

Romans 2:28

2:28 For a person is not a Jew who is one outwardly, nor is circumcision something that is outward in the flesh,

Philippians 3:5

3:5 I was circumcised on the eighth day, from the people of Israel and the tribe of Benjamin, a Hebrew of Hebrews. I lived according to the law as a Pharisee.