'Banner' in the Bible

Lift up a signal banner on the bare mountain,Summon them [the Medes and Persians] with a loud voice,Wave the [beckoning] hand so that they may enter the doorways of the [Babylonian] nobles.

This is what the Lord God says,“Listen carefully, I will lift up My hand to the [Gentile] nationsAnd set up My banner to the peoples;And they will bring your sons in the fold of their garments,And your daughters will be carried on their shoulders.