'Standard' in the Bible

Set up a standard toward Zion. Flee for safety! Don't wait; for I will bring evil from the north, and a great destruction."

How long shall I see the standard, and hear the sound of the trumpet?

Declare among the nations and publish, and set up a standard; publish, and don't conceal: say, Babylon is taken, Bel is disappointed, Merodach is dismayed; her images are disappointed, her idols are dismayed.

Set up a standard against the walls of Babylon, make the watch strong, set the watchmen, prepare the ambushes; for Yahweh has both purposed and done that which he spoke concerning the inhabitants of Babylon.

Set up a standard in the land, blow the trumpet among the nations, prepare the nations against her, call together against her the kingdoms of Ararat, Minni, and Ashkenaz: appoint a marshal against her; cause the horses to come up as the rough canker worm.