'Backs' in the Bible

So He brought me to the inner court of the Lord’s house. And behold, at the entrance to the temple of the Lord, between the porch (vestibule, portico) and the [bronze] altar, were about twenty-five men with their backs to the temple of the Lord and their faces toward the east; and they were bowing down toward the east and worshiping the sun.

Their whole body, their backs, their hands, their wings, and the wheels were full of eyes all around, even the wheels belonging to all four of them.