Genesis 17:22-24

Amplified Bible

²² And God finished speaking with him and went up from Abraham.

²³ Then Abraham took Ishmael his son, and all the servants who were born in his house and all who were purchased with his money, every male among the men of Abraham’s household, and circumcised the flesh of their foreskin the very same day, as God had said to him. ²⁴ So Abraham was ninety-nine years old when he was circumcised.