'Go in Peace' in the Bible

Then Eli answered and said, Go in peace: and the God of Israel grant you your petition that you have asked of him.

The LORD do so and much more to Jonathan: but if it pleases my father to do you evil, then I will show it to you, and send you away, that you may go in peace: and the LORD be with you, as he has been with my father.

And Jonathan said to David, Go in peace, since as we have sworn both of us in the name of the LORD, saying, The LORD be between me and you, and between my descendants and your descendants forever. And he arose and departed: and Jonathan went into the city.

Therefore now return, and go in peace, that you displease not the lords of the Philistines.