Now Joshua was clothed with filthy garments, and stood before the angel.
All Commentaries on Zechariah 3:3 Go To Zechariah 3
Augustine of Hippo
Now when he speaks of “uncleanness” here, the mere perusal of the passage is enough to show that he meant “sin” to be understood. It is plain from the words, of what he is speaking. The same phrase and sense occur in the prophet Zechariah, in the place where “the filthy garments” are removed from off the high priest, and it is said to him, “I have taken away your sins.” Well now, I rather think that all these passages, and others of like import, which point to the fact that humanity is born in sin and under the curse, are not to be read among the dark recesses of the Manichaeans but in the sunshine of Catholic truth.