3 Bible Verses about Whistling

I will signal for them, and gather them; for I have redeemed them: and they shall increase as they once increased.

And he will lift up a banner to the nations from afar, and will whistle unto them from the end of the earth: and, behold, they shall come with speed, swiftly:

And it shall come to pass in that day, that the LORD shall whistle for the fly that is in the uttermost part of the rivers of Egypt, and for the bee that is in the land of Assyria.