'Standard' in the Bible

Set up a standard toward Zion: flee for safety, stay not; 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 ye among the nations and publish, and set up a standard; publish, and conceal not: say, Babylon is taken, Bel is put to shame, Merodach is dismayed; her images are put to shame, her idols are dismayed.

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

Set ye 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.