'Nothing' in the Bible

Does a bird fall into a snare on the ground without any bait in the trap? Will a trap snap shut when there is nothing to catch?

"Truly the Lord GOD will do nothing he has mentioned without revealing his purposes to his servants the prophets.

but don't seek Bethel. Don't go to Gilgal, and don't pass over to Beer-sheba. Because Gilgal will surely go into captivity, and Bethel will come to nothing.

You rejoice in nothing worth mentioning that is, you keep on saying, "We captured Karnaim by our own strength of will and by our own effort, didn't we?'