Genesis 17:25

New Century Version

And Ishmael, his son, was thirteen years old when he was circumcised.

Cross References

Genesis 16:15

Hagar gave birth to a son for Abram, and Abram named him Ishmael.

Genesis 16:16

Abram was eighty-six years old when Hagar gave birth to Ishmael.

Genesis 17:26

Abraham and his son were circumcised on the same day.