'Mourning' in the Bible

And when the time of mourning was past, David sent word and had her brought to his house, and she became his wife and bore him a son. But the thing that David had done [with Bathsheba] was evil in the sight of the Lord.

So Joab sent word to Tekoa and had a wise woman brought from there and told her, “Please pretend to be a mourner, and put on mourning clothes, and do not anoint yourself with oil, but act like a woman who has for many days been in mourning for the dead.

It was told to Joab, “Behold, the king is weeping and mourning for Absalom.”

So the victory on that day was turned into mourning for all the people, for the people heard it said on that day, “The king grieves for his son.”