Are Walls Immoral?

The bible says in Revelation, John is in vision: "And he carried me away in the spirit to a great and high mountain and shewed me tha the great city, the holy Jerusalem, descending out of heaven from God...and had a wall great and high, and had twelve gates. , and at the gates twelve angels, and names written thereon, which are the names written thereon, which are the names of the twelve tribes of the children of Israel: On the east three gates, on the north three gates, on the south three gates, and on the west three gates. And the wall of the city had twelve foundations, and in them the names of the twelve apostles of the Lamb. Rev: 21:10,12,13. God has a great wall. Why does God have a Great Wall in the New Jerusalem? Because everyone cannot enter. Rev. 21:27: And there shall in no wise enter into it any thing that defileth, neither whatsoever worketh abomination, or maketh a lie: but they which are written in the Lamb's book of life."

God does not make mistakes. God knows what he is doing. He is all knowing. He is the great creator. God's great city will have walls and gates. We must look to the bible for knowledge. Are we going to obey man or obey God? God is all loving. God loves all people. But everyone will not enter. And everyone cannot enter the U.S. Those who want to enter must go through the legal process.