Exodus Chapter 15, Verse 26
From BibleWiki
26: And said, If thou wilt diligently hearken to the voice of the LORD thy God, and wilt do that which is right in his sight,
and wilt give ear to his commandments, and keep all his
statutes, I will put none of these diseases upon thee, which I
have brought upon the Egyptians: for I am the LORD that
healeth thee.
26: Saying: If thou wilt hear the voice of the Lord thy God, and do
what is right before him, and obey his commandments, and keep all his
precepts, none of the evils that I laid upon Egypt, will I bring upon
thee: for I am the Lord thy healer.
26: and said, If thou wilt indeed hear the voice of the Lord thy God, and do things pleasing before him, and wilt hearken to his commands, and keep all his ordinances, no disease which I have brought upon the Egyptians will I bring upon thee, for I am the Lord thy God that heals thee.
Exodus Chapter 15, Verse 26/commentary

