John 7:22

For this reason Moses has given you [God’s law regarding] circumcision (not that it originated with Moses, but with the patriarchs) and you circumcise a man [even] on the Sabbath.

Leviticus 12:3

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

Genesis 17:10-14

This is [the sign of] My covenant, which you shall keep and faithfully obey, between Me and you and your descendants after you: Every male among you shall be circumcised.

Romans 4:9-11

Is this blessing only for the circumcised, or also for the uncircumcised? For we say, “Faith was credited to Abraham as righteousness.”

Galatians 3:17

This is what I mean: the Law, which came into existence four hundred and thirty years later [after the covenant concerning the coming Messiah], does not and cannot invalidate the covenant previously established by God, so as to abolish the promise.

Treasury of Scripture Knowledge

Summary

Moses therefore gave unto you circumcision; (not because it is of Moses, but of the fathers;) and ye on the sabbath day circumcise a man.

Bible References

Circumcision

Genesis 17:10
This is [the sign of] My covenant, which you shall keep and faithfully obey, between Me and you and your descendants after you: Every male among you shall be circumcised.
Leviticus 12:3
On the eighth day the flesh of the male child’s foreskin shall be circumcised.
Romans 4:9
Is this blessing only for the circumcised, or also for the uncircumcised? For we say, “Faith was credited to Abraham as righteousness.”
Galatians 3:17
This is what I mean: the Law, which came into existence four hundred and thirty years later [after the covenant concerning the coming Messiah], does not and cannot invalidate the covenant previously established by God, so as to abolish the promise.

General references

Genesis 21:4
So Abraham circumcised his son Isaac when he was eight days old, just as God had commanded him.
Leviticus 12:3
On the eighth day the flesh of the male child’s foreskin shall be circumcised.
John 9:14
Now it was on a Sabbath day that Jesus made the mud and opened the man’s eyes.