'Mourning' in the Bible

In that day, the Lord, Yahweh of Armies, called to weeping, and to mourning, and to baldness, and to dressing in sackcloth:

then I will distress Ariel, and there will be mourning and lamentation. She shall be to me as an altar hearth.

Your sun shall no more go down, neither shall your moon withdraw itself; for Yahweh will be your everlasting light, and the days of your mourning shall be ended.

to appoint to those who mourn in Zion, to give to them a garland for ashes, the oil of joy for mourning, the garment of praise for the spirit of heaviness; that they may be called trees of righteousness, the planting of Yahweh, that he may be glorified.