Genesis 17:24-26

NHEB^{(i) 24} Abraham was ninety-nine years old, when he was circumcised in the flesh of his foreskin. ²⁵ Ishmael, his son, was thirteen years old when he was circumcised in the flesh of his foreskin. ²⁶ In the same day both Abraham and Ishmael, his son, were circumcised.