'Heavy' in the Bible

So all the men of Judah and Benjamin gathered at Jerusalem within three days. It was the twentieth [day] of the ninth month, and all the people sat in the open square in front of the house of God, trembling because of [the seriousness of] this matter and because of the heavy rain.

But there are many people and it is the season of heavy rain; so we are unable to stand outside. Nor can the task be done in a day or two, for we have transgressed greatly in this matter.