Luke 4

Peter’s mother-in-law

38 Then He left the synagogue and entered Simon’s house. But Simon’s mother-in-law was suffering with a high fever, and they requested Him on her behalf. 39 So He stood over her and rebuked the fever, and it left her. Immediately she got up and began to serve them.*Normally a high fever leaves one weak, so the Lord reversed the consequences of the fever as well. I take it that Matthew 8:14-15 records a different occasion. Just because God heals you once does not mean you will not get sick again.