Exodus 13:17; Exodus 23:31

17 Now when Pharaoh had let the people go, God did not lead them by the way of the land of the Philistines, even though it was near; for God said, "The people might change their minds when they see war, and return to Egypt."

31 "I will fix your boundary from the Red Sea to the sea of the Philistines, and from the wilderness to the River Euphrates; for I will deliver the inhabitants of the land into your hand, and you will drive them out before you.