The Old Testament Doctrine of Baptism

And were all baptized unto Moses in the cloud and in the sea; (1 Corinthians 10:2)

And Moses stretched out his hand over the sea; and the LORD caused the sea to go back by a strong east wind all that night, and made the sea dry land , and the waters were divided. And the children of Israel went into the midst of the sea upon the dry ground: and the waters were a wall unto them on their right hand, and on their left. (Exodus 14:21-22)