Exodus 15:23

23 When they came to Marah, they could not drink the water of Marah because it was bitter. That is why it was called Marah.

Exodus 15:23 In-Context

21 And Miriam sang to them: "Sing to the Lord, for he has triumphed gloriously; horse and rider he has thrown into the sea."
22 Then Moses ordered Israel to set out from the Red Sea, and they went into the wilderness of Shur. They went three days in the wilderness and found no water.
23 When they came to Marah, they could not drink the water of Marah because it was bitter. That is why it was called Marah.
24 And the people complained against Moses, saying, "What shall we drink?"
25 He cried out to the Lord; and the Lord showed him a piece of wood; he threw it into the water, and the water became sweet. There the Lord made for them a statute and an ordinance and there he put them to the test.

Footnotes 1

New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.