Depart, depart, go out from there, the Lord will go before you

Isaiah 52:1-12
Awake, awake, Zion, clothe yourself with strength!
For this is what the Lord says:“You were sold for nothing,  and without money you will be redeemed.”
How beautiful on the mountains are the feet of those who bring good news, who proclaim peace, who bring good tidings, who proclaim salvation, who say to Zion, “Your God reigns!”
Depart, depart, go out from there! Touch no unclean thing! Come out from it and be pure, you who carry the articles of the Lord’s house. But you will not leave in haste or go in flight;
for the Lord will go before you, the God of Israel will be your rear guard.It is time to shake off grief and lethargy. There is good news, God is about to escort his people home.
Why?
Awake and depart, go out from there! The captivity is ended, God will deliver his people to home.
God is go before us, we leave from captivity or slavery will no leave in haste or go in flight, like Israelite left Egypt and return from Persia and Media.
God's people was sold for nothing for their sins and be slavery in Babylonian. Now the Lord bring them to home with peace and they don't need pay anything. Like Jesus give us a way to the Lord and we don't need to pay, just need believe Jesus is the son of God.
How?
Depart, depart, go out from there, go out from my comfort land and position and go on the way of the Lord. God is go before me!