Genesis 17:23
And Abraham took Ishmael his son, and all that were born in his house, and all that were bought with his money, every male among the men of Abraham's house; and circumcised the flesh of their foreskin in the selfsame day, as God had said to him.
Torrey's Topical Textbook—AKJV

Exodus 4:25
Then Zipporah took a sharp stone, and cut off the foreskin of her son, and cast it at his feet, and said, Surely a bloody husband are you to me.
Torrey's Topical Textbook—AKJV