John 7:22

Therefore Moses gave you circumcision (not that it is of Moses, but of the fathers), and ye circumcise a man on sabbath.

Leviticus 12:3

And on the eighth day shall the flesh of his foreskin be circumcised.

Genesis 17:10-14

This is my covenant which ye shall keep, between me and you and thy seed after thee that every male among you be circumcised.

Romans 4:9-11

Does this blessedness then rest on the circumcision, or also on the uncircumcision? For we say that faith has been reckoned to Abraham as righteousness.

Galatians 3:17

Now I say this, A covenant confirmed beforehand by God, the law, which took place four hundred and thirty years after, does not annul, so as to make the promise of no effect.

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 my covenant which ye shall keep, between me and you and thy seed after thee that every male among you be circumcised.
Leviticus 12:3
And on the eighth day shall the flesh of his foreskin be circumcised.
Romans 4:9
Does this blessedness then rest on the circumcision, or also on the uncircumcision? For we say that faith has been reckoned to Abraham as righteousness.
Galatians 3:17
Now I say this, A covenant confirmed beforehand by God, the law, which took place four hundred and thirty years after, does not annul, so as to make the promise of no effect.

General references

Genesis 21:4
And Abraham circumcised his son Isaac, being eight days old, as God had commanded him.
Leviticus 12:3
And on the eighth day shall the flesh of his foreskin be circumcised.
John 9:14
Now it was sabbath when Jesus made the mud and opened his eyes.