Exodus 15:23 ASV

²¹  And Miriam answered them, Sing ye to Jehovah, for he hath triumphed gloriously; The horse and his rider hath he thrown into the sea.

²²  And Moses led Israel onward from the Red Sea, and they went out into the wilderness of Shur; and they went three days in the wilderness, and found no water.

²³  And when they came to Marah, they could not drink of the waters of Marah, for they were bitter: therefore the name of it was called Marah.

²⁴  And the people murmured against Moses, saying, What shall we drink?

²⁵  An he cried unto Jehovah; And Jehovah showed him a tree, and he cast it into the waters, and the waters were made sweet. There he made for them a statute and an ordinance, and there he proved them;