Luke 1:59
And it happened that on the eighth day they came to circumcise the child, and were calling it Zacharias, after his father's name.
Genesis 17:12
And a son of eight days shall be circumcised among you, every male child in your generations; he that is born in the house, or bought with silver of any stranger who is not of your seed.
Leviticus 12:3
And in the eighth day the flesh of his foreskin shall be circumcised.
Luke 2:21
And when eight days were fulfilled to circumcise the child, His name was called JESUS, the name called by the angel before He was conceived in the womb.
Philippians 3:5
I was circumcised the eighth day, of the stock of Israel, of the tribe of Benjamin, a Hebrew of the Hebrews. As regards the Law, I was a Pharisee;
Genesis 21:3-4
And Abraham called the name of his son that was born to him (whom Sarah bore to him) Isaac.
Acts 7:8
And He gave him the covenant of circumcision. And so Abraham fathered Isaac and circumcised him the eighth day. And Isaac fathered Jacob, and Jacob the twelve patriarchs.