the flesh.

Exodus 4:25
But Zipporah took a flint knife, cut off her son's foreskin, and touched Moses' feet with it. "Surely you are a bridegroom of blood to me, " she said.

Joshua 5:3
So Joshua made flint knives and circumcised the sons of Israel at Gibeath-haaraloth.

1 Samuel 18:25-27
Saul replied, "Say to David, 'The king desires no other dowry but a hundred Philistine foreskins as revenge on his enemies.'" But Saul intended to cause David's death at the hands of the Philistines. . . .

2 Samuel 3:14
Then David sent messengers to say to Ish-bosheth son of Saul, "Give me back my wife, Michal, whom I betrothed to myself for a hundred Philistine foreskins."

a token.

Acts 7:8
Then God gave Abraham the covenant of circumcision, and Abraham became the father of Isaac and circumcised him on the eighth day. And Isaac became the father of Jacob, and Jacob of the twelve patriarchs.

Romans 4:11
And he received the sign of circumcision as a seal of the righteousness that he had by faith while he was still uncircumcised. So then, he is the father of all who believe but are not circumcised, in order that righteousness might be credited to them.