'Back' in the Bible

And kept back part of the price, his wife also being privy to it, and brought a certain part, and laid it at the apostles' feet.

But Peter said, Ananias, why hath Satan filled thine heart to lie to the Holy Ghost, and to keep back part of the price of the land?

To whom our fathers would not obey, but thrust him from them, and in their hearts turned back again into Egypt,

And how I kept back nothing that was profitable unto you, but have shewed you, and have taught you publickly, and from house to house,