Exodus 14:17

13 But Moses told the people, “Do not be afraid. Stand firm and you will see the LORD’s salvation, which He will accomplish for you today; for the Egyptians you see today, you will never see again.

14 The LORD will fight for you; you need only to be still.”

15 Then the LORD said to Moses, “Why are you crying out to Me? Tell the Israelites to go forward.

16 And as for you, lift up your staff and stretch out your hand over the sea and divide it, so that the Israelites can go through the sea on dry ground.

17 And I will harden the hearts of the Egyptians so that they will go in after them. Then I will gain honor by means of Pharaoh and all his army and chariots and horsemen.

18 The Egyptians will know that I am the LORD when I am honored through Pharaoh, his chariots, and his horsemen.”

19 And the angel of God, who had gone before the camp of Israel, withdrew and went behind them. The pillar of cloud also moved from before them and stood behind them,

20 so that it came between the camps of Egypt and Israel. The cloud was there in the darkness, but it lit up the night. So all night long neither camp went near the other.

21 Then Moses stretched out his hand over the sea, and all that night the LORD drove back the sea with a strong east wind that turned it into dry land. So the waters were divided,

Read all of Exodus 14