Exodus 15:25-26

LITV(i) 25 And he cried to Jehovah, and Jehovah showed him a tree. And he threw it into the water, and the water became sweet. He made a statute and an ordinance for them there, and He tested them there. 26 And he said, If you carefully listen to the voice of Jehovah your God, and do what is right in His eyes, and you give ear to His commandments, and keep all His statutes, I will not put on you all the diseases which I have put on Egypt; for I am Jehovah your healer.