'Happen' in the Bible

And Yahweh said to Moses, "{Is Yahweh's power limited}? Now you will see if my word will happen or not."

And it will happen, the man whom I will choose, his staff will blossom, and so I will rid from upon myself the grumblings of the {Israelites}, who [are] grumbling against you."

But if you do not drive out the inhabitants of the land from your presence, then it will happen that whomever you let remain of them will be like irritants in your eyes and like thorns in your sides; they will be your enemies in the land in which you live.