'Descending' in the Bible

After these things I saw another angel coming down from heaven, possessing great authority, and the earth was illuminated with his splendor and radiance.

And then I saw an angel descending from heaven, holding the key of the abyss (the bottomless pit) and a great chain was in his hand.

And I saw the holy city, new Jerusalem, coming down out of heaven from God, arrayed like a bride adorned for her husband;

And he carried me away in the Spirit to a vast and lofty mountain, and showed me the holy (sanctified) city of Jerusalem coming down out of heaven from God,