My wounds stink, [and] are corrupt,.... Meaning his sins, which had wounded him, and for which there is no healing but in a wounded Saviour, and by his stripes we are healed, Isaiah 53:5; where the same word is used as here; Christ's black and blue stripes and wounds, as the word signifies, are the healing of ours, both of sins, and of the effects of them; which, to a sensible sinner, are as nauseous and loathsome as an old wound that is festered and corrupt;
because of my foolishness: as all sin arises from foolishness, which is bound in the hearts of men, and from whence it arises, Mark 7:22; perhaps the psalmist may have respect to his folly with Bathsheba, which had been the occasion of all the distress that is spoken of both before and afterwards.