'Mourn' in the Bible

Therefore shall the land mourn, and every one that dwelleth therein shall languish, with the beasts of the field, and with the fowls of heaven; yea, the fishes of the sea also shall be taken away.

Even though they sold themselves to the nations, I will gather them. They will mourn for a while for the burden they were to the king and princes.

The inhabitants of Samaria shall fear because of the calves of Bethaven: for the people thereof shall mourn over it, and the priests thereof that rejoiced on it, for the glory thereof, because it is departed from it.