'Happen' in the Bible

It will happen in all the land, says the Lord, that two-thirds of the people in it will be cut off and die, but one-third will be left in it.

It will happen in one day (a day known to the Lord); not in the day or the night, but in the evening there will be light.

Moreover, on that day living waters will flow out from Jerusalem, half of them to the eastern sea and half of them to the western sea; it will happen both in summer and in winter.