Hebrews 12:22-23

But you have come to Mount Zion, even to the city of the living God, the heavenly Jerusalem, and to countless hosts of angels,

Revelation 14:1

Then I looked, and there the Lamb was standing on Mount Zion, and with Him one hundred and forty-four thousand people who had His name and the name of His Father written on their foreheads.

Revelation 21:10-27

So he carried me off under the power of the Spirit to a great, high mountain and showed me Jerusalem, the holy city, coming down out of heaven from God;

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