3 Bible Verses about Whistling

I will signal for them and gather them, for I have already redeemed them; then they will become as numerous as they were before.

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.

At that time the Lord will whistle for flies from the distant streams of Egypt and for bees from the land of Assyria.