Original Verse:
John Chapter 7 Verse 22Moses therefore gave unto you circumcision; (not because it is of Moses, but of the fathers;) and ye on the sabbath day circumcise a man.

Reference Verses:
Matthew Chapter 12 Verse 5Or have ye not read in the law, how that on the sabbath days the priests in the temple profane the sabbath, and are blameless?
Genesis Chapter 21 Verse 4And Abraham circumcised his son Isaac being eight days old, as God had commanded him.
Galatians Chapter 3 Verse 17And this I say, that the covenant, that was confirmed before of God in Christ, the law, which was four hundred and thirty years after, cannot disannul, that it should make the promise of none effect.
Genesis Chapter 17 Verse 10This is my covenant, which ye shall keep, between me and you and thy seed after thee; Every man child among you shall be circumcised.
Acts Chapter 7 Verse 8And he gave him the covenant of circumcision: and so Abraham begat Isaac, and circumcised him the eighth day; and Isaac begat Jacob; and Jacob begat the twelve patriarchs.
Romans Chapter 4 Verse 11And he received the sign of circumcision, a seal of the righteousness of the faith which he had yet being uncircumcised: that he might be the father of all them that believe, though they be not circumcised; that righteousness might be imputed unto them also:
Leviticus Chapter 12 Verse 3And in the eighth day the flesh of his foreskin shall be circumcised.