Parallel
Exodus 17:11
Swete's Septuagint · Berean Standard Bible
καὶ ἐγίνετο ὅταν ἐπῆρεν Μωυσῆς τὰς χεῖρας, κατίσχυεν ὅταν δὲ καθῆκεν τὰς χεῖρας, κατίσχυεν Ἀμαλήκ.
As long as Moses held up his hands, Israel prevailed; but when he lowered them, Amalek prevailed.