Parallel
Numbers 3:49
Swete's Septuagint · Berean Standard Bible
καὶ ἔλαβεν Μωυσῆς τὸ ἀργύριον, τὰ λύτρα τῶν πλεοναζόντων, εἰς τὴν ἐκλύτρωσιν τῶν Λευειτῶν·
So Moses collected the redemption money from those in excess of the number redeemed by the Levites.