And they came to Marah, and they were unable to drink the waters of Marah, for they were bitter. So the name of it was called Marah.
And the people grumbled against Mosheh, saying, “What are we to drink?”
Then he cried out to יהוה, and יהוה showed him a tree. And when he threw it into the waters, the waters were made sweet. There He made a law and a right-ruling for them, and there He tried them.