Exodus 15:24-26

New Catholic Bible

²⁴ So the people murmured against Moses, saying, “What will we drink?” ²⁵ He called upon the Lord, who showed him a tree. When he cast it into the water, it became sweet.

The Lord made a statute and an ordinance for them there and put them to the test. ²⁶ He said, “If you listen to the voice of the Lord, your God, and you do what is right in his sight, if you listen to his ordinances and observe all of his laws, I will not bring upon you any of the diseases that I brought upon the Egyptians, for I am the Lord, who heals you.”