'Whistle' in the Bible

He will also lift up a standard to the distant nation,And will whistle for it from the ends of the earth;And behold, it will come with speed swiftly.

On that daythe Lord will whistle to the flythat is at the farthest streams of the Nileand to the bee that is in the land of Assyria.

I will whistle and gather thembecause I have redeemed them;they will be as numerous as they once were.