Exodus 15:10

Overview - Exodus 15
1	The song of Moses, Miriam, and Israel on their deliverance.
22	The people want water in the wilderness.
23	The waters at Marah are bitter, they murmur, Moses prays, and sweetens the waters by God's direction.
27	They encamp at Elim, where are twelve wells, and seventy palm trees.

Exodus 15:10  (King James Version)
Thou didst blow with thy wind, the sea covered them: they sank as lead in the mighty waters.