'Back part' in the Bible
And the priest hath seen that which hath the plague after it hath been washed, and lo, the plague hath not changed its aspect, and the plague hath not spread, -- it is unclean; with fire thou dost burn it; it is a fretting in its back-part or in its front-part.
The throne had six steps, and the top of the throne was round in the back part. And there were stays on either side on the place of the seat, and two lions stood beside the stays;
And he measured the length of the building at the face of the separated place which was upon its back part, and its offsets from hence, and from thence, a hundred cubits, and the inner temple and the porches of the enclosure.
And he was upon the back part of the ship, sleeping upon a pillow: and they aroused him, and say to him, Teacher, carest thou not that we perish?
However, he kept back part of the proceeds with his wife’s knowledge, and brought a portion of it and laid it at the apostles’ feet.
Then Peter said, “Ananias, why has Satan filled your heart to lie to the Holy Spirit and keep back part of the proceeds from the field?
And to keep back part of the price of the land? While it remained, did it not remain thine? And when it was sold, was it not in thy power? Why hast thou conceived this thing in thy heart? Thou hast not lied to men, but to God.
And coming to a point between two seas, they got the ship to land; and the front part was fixed in the sand and not able to be moved, but the back part was broken by the force of the waves.