Exodus 15:22
“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.”
And Miriam the prophetess, the sister of Aaron, took a timbrel in her hand; and all the women went out after her with timbrels and with dances.
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.
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.
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.
And the people murmured against Moses, saying, What shall we drink?
Counter-Arguments
The strongest case that this verse does not belong in this theme.

Cross-References
“Wherefore I caused them to go forth out of the land of Egypt, and brought them into the wilderness.”
“And the water was spent in the bottle, and she cast the child under one of the shrubs.”
“And the angel of the Lord found her by a fountain of water in the wilderness, by the fountain in the way to Shur.”
“And the angel of the Lord found her by a fountain of water in the wilderness, by the fountain in the way to Shur.”
“And Saul smote the Amalekites from Havilah until thou comest to Shur, that is over against Egypt.”