וִיהוֹשֻׁ֕עַ הָיָ֥ה לָבֻ֖שׁ בְּגָדִ֣ים צוֹאִ֑ים וְעֹמֵ֖ד לִפְנֵ֥י הַמַּלְאָֽךְ׃
Nun war Josua mit schmutzigen Kleidern bekleidet und stand vor dem Engel.
Rashi on Zechariah
was wearing filthy garments This is to be explained according to the Targum: He had sons who had married women who were unfit [to marry into] the priesthood, and he was punished because he did not interfere with the [sons’ marriages].