Parallel
Exodus 25:21
Rahlfs Septuagint (1935) · Berean Standard Bible
καὶ ἐπιθήσεις τὸ ἱλαστήριον ἐπὶ τὴν κιβωτὸν ἄνωθεν καὶ εἰς τὴν κιβωτὸν ἐμβαλεῖς τὰ μαρτύρια ἃ ἂν δῶ σοι
Set the mercy seat atop the ark and put the Testimony that I will give you into the ark.