“And when Jesus was come into Peter’s house, he saw his wife’s mother laid, and sick of a fever.”
Matthew 8:14 — Greek Interlinear
Church Fathers on Matthew 8:14
Why did He enter into Peter’s house? I think to take food; for it follows, 'And she arose, and ministered to them.' For He abode with His disciples to do them honour, and to make them more zealous. Observe Peter’s reverence towards Christ; though his mother-in-law lay at home sick of a fever, yet he did not force Him thither at once, but waited till His teaching should be completed, and others healed. For from the beginning he was instructed to prefer others to himself.…
For naturally the greatest weakness follows fever, and the evils of sickness begin to be felt as the patient begins to recover; but that health which is given by the Lord’s power is complete at once.
And it is not enough that she is cured, but strength is given her besides, for 'she arose and ministered unto them.'