Exodus 15:25

And Moses cried out to the LORD, and the LORD showed him a log. And when he cast it into the waters, they were sweetened. There the LORD made for them a statute and an ordinance, and there He tested them,

And he cried unto the LORD; and the LORD shewed him a tree, which when he had cast into the waters, the waters were made sweet: there he made for them a statute and an ordinance, and there he proved them,