Genesis 17:25

New English Translation

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

Cross References

Genesis 16:15

So Hagar gave birth to Abram’s son, whom Abram named Ishmael.

Genesis 16:16

(Now Abram was 86 years old when Hagar gave birth to Ishmael.)

Genesis 17:26

Abraham and his son Ishmael were circumcised on the very same day.