Genesis 17:11

And ye shall circumcise the flesh of your foreskin; and that shall be a sign of the covenant between me and you.

Romans 4:11

And he received the sign of circumcision as seal of the righteousness of faith which he had being in uncircumcision, that he might be the father of all them that believe being in uncircumcision, that righteousness might be reckoned to them also;

Acts 7:8

And he gave to him the covenant of circumcision; and thus he begat Isaac and circumcised him the eighth day; and Isaac Jacob, and Jacob the twelve patriarchs.

Exodus 4:25

Then Zipporah took a stone and cut off the foreskin of her son, and cast it at his feet, and said, A bloody husband indeed art thou to me!

Exodus 12:48

And when a sojourner sojourneth with thee, and would hold the passover to Jehovah, let all his males be circumcised, and then let him come near and hold it; and he shall be as one that is born in the land; but no uncircumcised person shall eat thereof.

Deuteronomy 10:16

Circumcise then the foreskin of your heart, and stiffen your neck no more.

Joshua 5:3

And Joshua made him stone-knives, and circumcised the children of Israel at the hill of Araloth.

1 Samuel 18:25-27

And Saul said, Thus shall ye say to David: The king does not desire any dowry, but a hundred foreskins of the Philistines, to be avenged of the king's enemies. But Saul thought to make David fall by the hand of the Philistines.

2 Samuel 3:14

And David sent messengers to Ishbosheth Saul's son, saying, Deliver me my wife Michal, whom I espoused to me for a hundred foreskins of the Philistines.

Treasury of Scripture Knowledge

Summary

And ye shall circumcise the flesh of your foreskin; and it shall be a token of the covenant betwixt me and you.

Bible References

The flesh

Exodus 4:25
Then Zipporah took a stone and cut off the foreskin of her son, and cast it at his feet, and said, A bloody husband indeed art thou to me!
Joshua 5:3
And Joshua made him stone-knives, and circumcised the children of Israel at the hill of Araloth.
1 Samuel 18:25
And Saul said, Thus shall ye say to David: The king does not desire any dowry, but a hundred foreskins of the Philistines, to be avenged of the king's enemies. But Saul thought to make David fall by the hand of the Philistines.
2 Samuel 3:14
And David sent messengers to Ishbosheth Saul's son, saying, Deliver me my wife Michal, whom I espoused to me for a hundred foreskins of the Philistines.
Exodus 4:25
Then Zipporah took a stone and cut off the foreskin of her son, and cast it at his feet, and said, A bloody husband indeed art thou to me!
Joshua 5:3
And Joshua made him stone-knives, and circumcised the children of Israel at the hill of Araloth.
1 Samuel 18:25
And Saul said, Thus shall ye say to David: The king does not desire any dowry, but a hundred foreskins of the Philistines, to be avenged of the king's enemies. But Saul thought to make David fall by the hand of the Philistines.
2 Samuel 3:14
And David sent messengers to Ishbosheth Saul's son, saying, Deliver me my wife Michal, whom I espoused to me for a hundred foreskins of the Philistines.

A token

Acts 7:8
And he gave to him the covenant of circumcision; and thus he begat Isaac and circumcised him the eighth day; and Isaac Jacob, and Jacob the twelve patriarchs.
Romans 4:11
And he received the sign of circumcision as seal of the righteousness of faith which he had being in uncircumcision, that he might be the father of all them that believe being in uncircumcision, that righteousness might be reckoned to them also;
Acts 7:8
And he gave to him the covenant of circumcision; and thus he begat Isaac and circumcised him the eighth day; and Isaac Jacob, and Jacob the twelve patriarchs.
Romans 4:11
And he received the sign of circumcision as seal of the righteousness of faith which he had being in uncircumcision, that he might be the father of all them that believe being in uncircumcision, that righteousness might be reckoned to them also;

General references

Genesis 9:12
And God said, This is the sign of the covenant that I set between me and you and every living soul that is with you, for everlasting generations:
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.
Genesis 9:12
And God said, This is the sign of the covenant that I set between me and you and every living soul that is with you, for everlasting generations:
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.