'Back' in the Bible

I tell you that the pay of the labourers who have gathered in your crops--pay which you are keeping back--is calling out against you; and the outcries of those who have been your reapers have entered into the ears of the Lord of the armies of Heaven.

My brethren, if one of you strays from the truth and some one brings him back,

let him know that he who brings a sinner back from his evil ways will save the man's soul from death and throw a veil over a multitude of sins.