John Lightfoot on John 20:12

[The one at the head, and the other at the feet.] So were the cherubims placed at each end of the mercy seat, Exodus 25:18,19. As to those cherubims that were in Solomon's Temple, 2 Chronicles 3:10, I cannot but by the way observe what I meet with in Bava Bathra: "Onkelos the proselyte saith, 'The cherubims are like children going from their master.'" That is, with their faces turned partly towards their master, and partly towards the way wherein they were to go. For as the Gemarists, "When Israel obeyed the will of God, the cherubims looked towards one another; but when they did not, then they turned their faces towards the walls."

Thus Onkelos comments upon this place of the Chronicles. I hardly think he Targumizeth on the book; for the Targum, at least that which is in our hands, renders it, Both the cherubim are made of lily work.