Who forgiveth all thine iniquities— Diseases were generally considered, under the Mosaic dispensation, as the punishment of iniquities; and therefore the healing of his diseases is mentioned as the consequence of the forgiveness of his sins. We cannot have a more full and satisfactory comment on this passage, than the frequent cures wrought by our Saviour on the bodies of men, emblematical of the cure of their spiritual diseases. See particularly the case of the paralytic, Matthew 9:2; Matthew 9:38.
Related Commentaries of Psalms 103:3
Psalms 103:3
3 Who forgiveth all thine iniquities; who healeth all thy diseases;