Psalms 6:1

These verses speak the language of a heart truly humbled under humbling providences, of a broken and contrite spirit under great afflictions, sent on purpose to awaken conscience and mortify corruption. Those heap up wrath who cry not when God binds them; but those are getting ready for mercy who, under God's rebukes, sow in tears, as David does here. Let us observe here, I. The representation he makes to God of his grievances. He pours out his complaint before him. Whither else should a child go with his complaints, but to his father? 1. He complains of bodily pain and sickness (Psa 6:2): My bones are vexed. His bones and his flesh, like Job's, were touched. Though David was a king, yet he was sick and pained; his imperial crown could not keep his head from aching. Great men are men, and subject to the common calamities of human life. Though David was a stout man, a man of war from his youth, yet this could not secure him from distempers, which will soon make even the strong men to bow themselves. Though David was a good man, yet neither could his goodness keep him in health. Lord, behold, he whom thou lovest is sick.

— Matthew Henry's Concise Commentary (public domain)