Parallel
Genesis 17:25
Swete's Septuagint · Berean Standard Bible
Ἱσμαὴλ δὲ ὁ υἱὸς αὐτοῦ ἐτῶν δέκα τριῶν ἦν, ἡνίκα περιτὴν σάρκα τῆς ἀκροβυστίας αὐτοῦ.
and his son Ishmael was thirteen;