Simon's wife's mother - See on Matthew 8:14-17 (note). As soon as Peter began to follow Christ, his family began to benefit by it. It is always profitable to contract an acquaintance with good men. One person full of faith and prayer may be the means of drawing down innumerable blessings on his family and acquaintance. Every person who knows the virtue and authority of Christ should earnestly seek his grace in behalf of all the spiritually diseased in his household; nor can he seek the aid of Christ in vain.

(7) And he arose out of the synagogue, and entered into Simon's house. And Simon's wife's mother was taken with a great fever; and they besought him for her.
(7) In that Christ heals the diseases of the body with only his word, he proves that he is God Almighty, sent for man's salvation.

And he arose out of the synagogue,.... That is, when he had dispossessed the unclean spirit, he rose up, and went out of the synagogue:
and entered into Simon's house; the house of Simon Peter, and which was also Andrew's; and in Beza's ancient copy, and in one of Stephens's, it is added, "and of Andrew"; who, though they were both natives of Bethsaida, yet, it seems, had an house at Capernaum, whither Christ went of his own accord, or by an invitation given him:
and Simons wife's mother was taken with a great fever. The Vulgate Latin version reads, "with great fevers". The fever is
"a disease, or rather a class of diseases, whose characteristic is a preternatural heat felt through the whole body, or, at least, the principal parts thereof, attended with other symptoms----"One" defines a fever, a strenuous endeavour, or effort of nature to throw off some morbific matter, that greatly incommodes the body.---- "Another", an augmented velocity of the blood; others, a fermentation of the blood; accompanied with a quick pulse and excessive heat.----The causes of fevers are innumerable, and the disease even often arises in the soundest bodies, where there was no previous morbific apparatus, as cachochymia, plethora, &c. but merely from a change of air, food, or other alteration in the non-naturals. A fever, "one" observes, is an inseparable companion of an inflammation. The symptoms are many: every fever, arising from any internal cause, is attended with a quick pulse, and unusual heat at different times, and in different degrees. Where these are intense, the fever is acute, where remiss, slow. The disease begins almost always with a sense of; chillness, and in its progress is chiefly distinguished by the velocity of the pulse: so that a too quick contraction of the heart, with an increased resistance, or impulse against the capillaries, furnishes the proper idea of a fever (z).''
The fever Peter's wife's mother lay ill of, is said to be a "great one"; which circumstance is the rather mentioned, to illustrate the miraculous cure of it by Christ; See Gill on Matthew 8:14.
And they besought him for her; either his disciples Peter, Andrew, James, and John, who were all present, or the other relations and friends of the sick person, which were in the house; who having heard of his casting out the unclean spirit in the synagogue, believed that he had power to heal this disease; and therefore intreat him, for her sake, and upon her account, that he would restore her health.
(z) See Chambers's Cyclopaedia in the word "Fever".

Simon's wife's mother. See notes on Matthew 8:14-17. Compare Mark 1:29-34.

Matthew 8:14; Mark 1:29.