Deuteronomy 7:15

7:15 The Lord will protect you from all sickness, and you will not experience any of the terrible diseases that you knew in Egypt; instead he will inflict them on all those who hate you.

Exodus 15:26

15:26 He said, “If you will diligently obey the Lord your God, and do what is right in his sight, and pay attention to his commandments, and keep all his statutes, then all the diseases that I brought on the Egyptians I will not bring on you, for I, the Lord, am your healer.”