Isaiah 5:26

5:26 He lifts a signal flag for a distant nation,

he whistles for it to come from the far regions of the earth.

Look, they come quickly and swiftly.

Isaiah 11:12

11:12 He will lift a signal flag for the nations;

he will gather Israel’s dispersed people

and assemble Judah’s scattered people

from the four corners of the earth.

Isaiah 18:3

18:3 All you who live in the world,

who reside on the earth,

you will see a signal flag raised on the mountains;

you will hear a trumpet being blown.

Jeremiah 50:2

50:2 “Announce the news among the nations! Proclaim it!

Signal for people to pay attention!

Declare the news! Do not hide it! Say:

‘Babylon will be captured.

Bel will be put to shame.

Marduk will be dismayed.

Babylon’s idols will be put to shame.

Her disgusting images will be dismayed.

Jeremiah 51:27-28

51:27 “Raise up battle flags throughout the lands.

Sound the trumpets calling the nations to do battle.

Prepare the nations to do battle against Babylonia.

Call for these kingdoms to attack her:

Ararat, Minni, and Ashkenaz.

Appoint a commander to lead the attack.

Send horses against her like a swarm of locusts.

51:28 Prepare the nations to do battle against her.

Prepare the kings of the Medes.

Prepare their governors and all their leaders.

Prepare all the countries they rule to do battle against her.