Zechariah 1-3

To those Jews returning from 70 years of exile there had to be lingering questions; what will it take to forgive the sins of our fathers? How many sacrifices will be required? Yet such thinking does not originate in the mind of God. Even before the walls of Jerusalem fell God had a plan for their redemption. The God's actions envisioned on Joshua gave Zechariah the clear message. Just as God has reclothed Joshua in a moment, so shall all of God's people be redressed in God's purity in a single day (3:9). I think that may also be an example to us of the change Paul describes in 1 Cor 15:51-53.
Stuart