Mark 1:29-31

²⁹ Now as soon as they had come out of the synagogue, they entered the house of Simon and Andrew, with James and John.

³⁰ But Simon’s wife’s mother lay sick with a fever, and they told Him about her at once.

³¹ So He came and took her by the hand and lifted her up, and immediately the fever left her. And she served them.

Also found in Matthew 8:14-15 and Luke 4:38-39.

Jesus often visited Simon and Andrew’s house. Mark 2:1; 3:19; 9:33; 10:10.

Peter was married (1 Corinthians 9:5), and his wife may have traveled with him in his later ministry. Church tradition (but not Scripture) states that she ministered to women in their homes as she traveled with Peter.

lay sick with a fever (v.30) — the Greek indicates that she was prostrate, burning up with fever, and had been for some time. It may have been a chronic condition.

severed them (v.31) = waited upon like a domestic servant. The tense indicates a progressive action. She prepared and served a meal (probably the Sabbath meal). — Not only was the fever gone, but the woman had none of the usual post-sickness weakness. The word “immediately” is not in some texts, but the context indicates that her healing was instantaneous.