LXX Gen 22:12

καὶ εἶπεν Μὴ ἐπιβάλῃς τὴν χεῖρά σου ἐπὶ τὸ παιδάριον, μηδὲ ποιήσης αὐτῷ μηδέν· νῦν γὰρ ἔγνων ὅτι φοβῇ τὸν θεὸν σύ, καὶ οὐκ ἐφείσω τοῦ υἱοῦ σου τοῦ ἀγαπητοῦ δι’ ἐμέ.

“Do not lay a hand on the boy or do anything to him,” said the angel, “for now I know that you fear God, since you have not withheld your only son from me.”