"The Lord said to Satan, 'The Lord rebuke you, Satan! The Lord, who has chosen Jerusalem, rebuke you! Is not this man a burning stick snatched from the fire?'
Now Joshua was dressed in filthy clothes as he stood before the angel. The angel said to those who were standing before him, 'Take off his filthy clothes.'
Then he said to Joshua, 'See, I have taken away your sin, and I will put rich garments on you."
Rich Garments !!
Zechariah's vision purely illustrates how we receive God's mercy.
We do nothing ourselves.
God removes our filthy clothes (sins),
then provides us with new, clean, rich garments.
All we need to do is repent
and be baptized
for the fogiveness of our sins.