'Half' in the Bible

I will gather all the nations against Jerusalem to battle, and the city will be captured, and they will loot the houses, and the women will be raped; half of the city will go into exile, but the remainder of the people will not be cut off from the city.

On that day his feet will stand on {the Mount of Olives}, which faces Jerusalem on [the] east; and {the Mount of Olives} will be split {in half}, from east to west, [by] a very great valley; and half of the mountain will withdraw toward the north, and the other half toward the south.

{And then} on that day, living waters will flow out from Jerusalem, half of them to the eastern sea, and the other half to the western sea; it will happen [both] in the summer and in the winter.