Psalms 6:2 - Matthew Poole's English Annotations on the Holy Bible

Have mercy upon me; I plead not my merit, but thy free mercy. I am weak; or, I languish; my body pines away and my spirit fails through my excessive pains or troubles. Heal me, i.e. the distempers of my soul and body, of both which this word is used, Psalms 41:4, Psalms 107:18,20. My bones are vexed; my torment is so deep and so general, that it reacheth and is very grievous even to my bones, though they are inward, and might seem to be out of the reach of it, and also strong and senseless, and therefore can best bear it. See the like expressions Job 4:14, Job 33:19 Psalms 38:3, Psalms 51:8.