Parallel
Genesis 17:21
Swete's Septuagint · Berean Standard Bible
ἰτὴν δὲ διαθήκην μου στήσω πρὸς Ἱσαάκ, ὄν τέξεταί σοι Σάρρα εἰς τὸν καιρὸν τοῦτον ἐν τῷ ἐνιαυτῷ τῷ ἑτέρῳ.
But I will establish My covenant with Isaac, whom Sarah will bear to you at this time next year.”