'Happen' in the Bible

He said, "What you ask is difficult. If you see me being taken from you, it will be so for you, but if not, it will not happen."

Then the officer {on whom the king relied} answered the man of God and said, "Look, [even if] Yahweh [is] making windows in heaven, could this thing happen?" And he said, "Look, you [will be] seeing [it] with your eyes, but you shall not eat from it there."

Then the officer had replied to the man of God and said, "Look, even if Yahweh is opening the windows in heaven, could this thing happen?" And he had said, "Look you [are about to] see it with your eyes, but you will not eat from it."