Referring to the church that keeps the feasts, God called it “Zion.”
The Church of God is the only church that keeps the Sabbath, Passover, Unleavened Bread, Firstfruits, Pentecost, Trumpets, Atonement Day, and Tabernacles, which are the feasts of God as revealed in the Bible.

Zion never be built by Humans, only God can build it.

Jesus established New Covenant Passover with His own blood, not the blood of animals in the Mosaic Law.
He told us that the place where the feasts of the new covenant are celebrated is Zion, where mankind's salvation is permitted. However, during the religious darkness of the Middle Ages, all the feasts of the new covenant disappeared, as a result, Zion collapsed.

Today, it is Christ Ahnsahnghong who has rebuilt the collapsed Zion through the feasts. So, he is God.

[Psalms 102:16] For the LORD will rebuild Zion and appear in his glory.

[ Isaiah 33:20~22] Look upon Zion, the city of our festivals; your eyes will see Jerusalem, a peaceful abode, a tent that will not be moved; its stakes will never be pulled up, nor any of its ropes broken. There the LORD will be our Mighty One. It will be like a place of broad rivers and streams. No galley with oars will ride them, no mighty ship will sail them. For the LORD is our judge, the LORD is our lawgiver, the LORD is our king; it is he who will save us.