Isaiah 64:6

And we are all become as one unclean in a ceremonial sense, like the leper.

and all our righteousnesses &c. our righteous deeds, our best efforts after the fulfilment of the divine will, are stained and rendered ineffective by our general sinful condition.

as filthy rags as a polluted garment.

our iniquities, like the wind, &c. cf. ch. Isaiah 57:13; Job 27:21; Job 30:22. The image is here that of the leaf, already sere and faded, swept from the tree by the winter blast: so our iniquities hurry us away to destruction.