Parallel
Deuteronomy 4:15
Swete's Septuagint · Berean Standard Bible
καὶ φυλάξεσθε σφόδρα τὰς ψυχὰς ὑμῶν, ὅτι οὐκ εἴδετε ὁμοίωμα ἐν τῆ ἡμέρᾳ ᾗ ἐλάλησεν κύριος πρὸς ὑμᾶς ἐν Χωρήβ ἐν τῷ ὄρει ἐκ μέσου τοῦ πυρός·
So since you saw no form of any kind on the day the LORD spoke to you out of the fire at Horeb, be careful