But Simon’s wife’s mother lay sick of a fever, and anon they tell Him of her. – Mark 1:30

The seaboard of Capernaum in which Peter dwelt is said by travelers to be a peculiarly damp, marshy, aguish, feverish place, no end of people had the fever just around the house; but Peter and Andrew did not argue that they must not tell the Lord because it was a common disease. Do not let Satan get an advantage over you by persuading you to keep back commonplace troubles or sins from your loving Lord. Beloved, if He counts the hairs of your heads, if not a sparrow falls to the ground without His knowledge, depend upon it your commonest trouble will be sympathized in by Him. “In all their afflictions He was afflicted.” It is a great mistake to think you may not carry to your Redeemer the ordinary trials of the day; tell Him, yea, tell Him all. If your child is only a common sinner, if there is no unusual depravity in him, if your son has never grieved you by perverseness, if your daughter has always been amiable and gentle, do not think there is no need to pray. If it is only a common case of the fever of sin, yet it will be deadly in the end unless a balm be found, therefore tell Jesus of it at once. Do not wait till your son becomes a prodigal, pray at once! Do not delay till your child is at death’s door, pray now!

Peter’s wife’s mother was attacked by no ordinary fever. We are told it was “a great fever”: the expression used implies that she was burning with fever; and she was intensely debilitated, for she was laid prostrate. Now the devil will sometimes insinuate, “It is of no use for you to take such a case to Jesus; your son has acted so shamefully, your daughter is so wilful: such a case will never yield to divine grace in answer to prayer.” Do not be held back by this wicked suggestion. Our Lord Jesus Christ can rebuke great fevers, and He can lift up those that are broken down and rendered powerless by raging sin. “Wonders of grace to God belong.” Go and tell Jesus of the case, common or uncommon, ordinary or extraordinary even as they told Jesus of her. ~ C.H. Spurgeon

https://www.blueletterbible.org/Comm/spurgeon_charles/sermons/1236.cfm