TSK · 2 Chronicles 30:20

and he said, "If you will diligently listen to the voice of Yahweh your God, and will do that which is right in his eyes, and will pay attention to his commandments, and keep all his statutes, I will put none of the diseases on you, which I have put on the Egyptians; for I am Yahweh who heals you."

and the prayer of faith will heal him who is sick, and the Lord will raise him up. If he has committed sins, he will be forgiven.