Exodus 15:21-23

BRG Bible

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

²² So Moses brought Israel 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.