Exodus 13:17-21

When the king sent the people out of Egypt, God did not lead them on the road through the Philistine country, though that was the shortest way. God said, “If they have to fight, they might change their minds and go back to Egypt.” So God led them through the desert toward the Red Sea. The Israelites were dressed for fighting when they left the land of Egypt. Moses carried the bones of Joseph with him, because before Joseph died, he had made the Israelites promise to do this. He had said, “When God saves you, remember to carry my bones with you out of Egypt.” The Israelites left Succoth and camped at Etham, on the edge of the desert. The LORD showed them the way; during the day he went ahead of them in a pillar of cloud, and during the night he was in a pillar of fire to give them light. In this way they could travel during the day or night.