'Rain' in the Bible

Then all the men of Judah and Benjamin gathered themselves together to Jerusalem within the three days; it was the ninth month, on the twentieth [day] of the month: and all the people sat in the broad place before the house of God, trembling because of this matter, and for the great rain.

But the people are many, and it is a time of much rain, and we are not able to stand outside; neither is this a work of one day or two; for we have greatly transgressed in this matter.