'Standard' in the Bible

Raise a standard in the direction of Zion. Flee! Don't stand around! For I'm bringing calamity from the north, along with great destruction.

How long will I see the battle standard and hear the sound of the trumpet?

Lift up the battle standard against Babylon's walls. Strengthen the guard; post watchmen. Set men in position for an ambush. For the LORD will both plan and carry out what he has declared against the inhabitants of Babylon.

Lift up a battle standard in the land. Blow a trumpet among the nations. Consecrate the nations against her. Summon the kingdoms of Ararat, Minni, and Ashkenaz against her. Appoint a commander against her, bring up horses like bristling locusts.