In Exodus 17:15, 16, this signifies constant warfare under the Lord's protection from people in the falsities of interior evil, for a banner signifies calling to war. (Arcana Coelestia 8624)

In Isaiah 31:9, this signifies judgment upon people who esteem themselves as wise in divine things from their own intelligence. (Apocalypse Explained 411[18])

In Psalm 60:4, this signifies confident of deliverance and protection. (The Inner Meaning of the Prophets and Psalms 310)

(References: Apocalypse Explained 12; Apocalypse Revealed 532; Isaiah 3, 18, Isaiah 18:3; Matthew 24, Matthew 24:30; Revelation 1, 12:1, 12)