18. The chariots of God are two myriads of burning fire , two thousand angels guiding them ; the presence of the Lord rests on them, on the mountain of Sinai, in holiness.
19. You ascended to the firmament, O prophet Moses ; you captured captives, you taught the words of Torah , you gave gifts to the sons of men, and even the stubborn who are converted turn in repentance
Here Moses is the one giving gifts not God. Interestingly the Talmud also involves Moses in this passage through midrash but retains the idea of God receiving gifts like the LXX as M.T. read. Quite simply put it was an interpretation free-for-all. Paul was simply spinning the passage in a useful way to make his argument like the writer of this passage in the Targums had. For him it was Jesus not Moses who ascended and he gave gifts to men, just ignoring the following part about rebels. The Syriac (Christian) Peshitta 68:18 reads much like Ephesians but this is likely because of the spin in Ephesisans.