Zakharia 3:3

3:3 Now Joshua was dressed in filthy clothes ¹  as he stood there before the angel.

Zakharia 14:4

14:4 On that day his feet will stand on the Mount of Olives which lies to the east of Jerusalem, and the Mount of Olives will be split in half from east to west, leaving a great valley. Half the mountain will move northward and the other half southward. ² 

[3:3]  ¹ sn The Hebrew word צוֹאִים (tso’im) means “excrement.” This disgusting figure of speech suggests Joshua’s absolute disqualification for priestly service in the flesh, but v. 2 speaks of his having been rescued from that deplorable state by God’s grace. He is like a burning stick pulled out of the fire before it is consumed. This is a picture of cleansing, saving grace.

[14:4]  ² sn This seismic activity provides a means of escape from Jerusalem so that the Messiah (the Lord), whose feet will stand on the Mount of Olives, may destroy the wicked nations in the Kidron Valley (the v. of Jehoshaphat, or of “judgment of the Lord”) without harming the inhabitants of the city.