Jerusalem and Zion
In 2 Samuel 2:5 and 1 Kings 2:11, this signifies the Lord's spiritual and celestial church. (Arcana Coelestia 2909[4])
Revelation 9:9
9
They had breastplates, like breastplates of iron. The sound of their wings was like the sound of chariots, or of many horses rushing to war.