Luke 1:59

It happened that on the eighth day they came to circumcise the child [as required by the Law], and they intended to name him Zacharias, after his father;

Genesis 17:12

Every male among you who is eight days old shall be circumcised throughout your generations, [including] a servant whether born in the house or one who is purchased with [your] money from any foreigner, who is not of your descendants.

Leviticus 12:3

On the eighth day the flesh of the male child’s foreskin shall be circumcised.

Luke 2:21

At the end of eight days, when He was to be circumcised, He was named Jesus, the name given [to Him] by the angel [Gabriel] before He was conceived in the womb.

Philippians 3:5

circumcised when I was eight days old, of the nation of Israel, of the tribe of Benjamin, a Hebrew of Hebrews [an exemplary Hebrew]; as to the [observance of the] Law, a Pharisee;

Genesis 21:3-4

Abraham named his son Isaac (laughter), the son to whom Sarah gave birth.

Acts 7:8

And God gave Abraham a covenant [a formal agreement to be strictly observed] of [which] circumcision [was the sign]; and so [under these circumstances] Abraham became the father of Isaac, and circumcised him on the eighth day; and Isaac [became the father] of Jacob, and Jacob [became the father] of the twelve patriarchs.

Treasury of Scripture Knowledge

Summary

And it came to pass, that on the eighth day they came to circumcise the child; and they called him Zacharias, after the name of his father.

Bible References

General references

Luke 2:21
At the end of eight days, when He was to be circumcised, He was named Jesus, the name given [to Him] by the angel [Gabriel] before He was conceived in the womb.
Genesis 17:12
Every male among you who is eight days old shall be circumcised throughout your generations, [including] a servant whether born in the house or one who is purchased with [your] money from any foreigner, who is not of your descendants.
Genesis 21:3
Abraham named his son Isaac (laughter), the son to whom Sarah gave birth.
Leviticus 12:3
On the eighth day the flesh of the male child’s foreskin shall be circumcised.
Acts 7:8
And God gave Abraham a covenant [a formal agreement to be strictly observed] of [which] circumcision [was the sign]; and so [under these circumstances] Abraham became the father of Isaac, and circumcised him on the eighth day; and Isaac [became the father] of Jacob, and Jacob [became the father] of the twelve patriarchs.
Philippians 3:5
circumcised when I was eight days old, of the nation of Israel, of the tribe of Benjamin, a Hebrew of Hebrews [an exemplary Hebrew]; as to the [observance of the] Law, a Pharisee;