'Back' in the Bible

I am sending him back to you as a part of myself.

For perhaps this is why he was separated from you for a brief time, so that you might get him back permanently,

I, Paul, write [this] with my [own] hand: I will pay it back, lest I mention to you that {you owe me even your very self besides}.

At the same time also, prepare a place for me to stay, for I hope that through your prayers I will be given back to you.