Pursued by Pharaoh's chariots, the Israelites walk through a wall of water on dry ground; the sea closes behind them.
Exodus 14:21–22World English Bible
21Moses stretched out his hand over the sea, and Yahweh caused the sea to go back by a strong east wind all night, and made the sea dry land, and the waters were divided.22The children of Israel went into the middle of the sea on the dry ground; and the waters were a wall to them on their right hand and on their left.