'Go in Peace' in the Bible

Then said Jonathan unto David - Go in peace, - remembering that, we, have both sworn in the name of Yahweh, saying, Yahweh shall be between me and thee, and between my seed and thy seed, unto times age-abiding. And he arose, and departed, - and, Jonathan, entered the city.

Now, therefore, return, and go in peace, - so shalt thou not do wrong in the eyes of the lords of the Philistines.