Exodus 15:26-27

He said, “If you will listen carefully to the voice of the LORD your God and do what is right in his sight, obeying his commands and keeping all his decrees, then I will not make you suffer any of the diseases I sent on the Egyptians; for I am the LORD who heals you.” After leaving Marah, the Israelites traveled on to the oasis of Elim, where they found twelve springs and seventy palm trees. They camped there beside the water.