mourning: a recognized, outward state of grief marked by set customs and a fixed span of time, not merely an inner feeling.
In the Bible mourning is not a private mood but a public, rule-governed practice. It is marked by torn clothes, sackcloth and ashes, fasting, and loud wailing, and it runs for a set number of days: seven for Jacob, thirty for Moses. Because it has a recognized shape and a known length, it can be commanded, timed, and on rare occasions even forbidden.
The heart of the word is grief for someone who has died, whether a father, a leader, or a husband. From there it widens to public grief over any disaster, from one person's ruin to a whole nation's downfall. The prophets seize on it as the very sound of judgment: God threatens to turn Israel's feasts into mourning, a funeral for a broken covenant.
Yet because mourning has a shape and an end, it can be undone, and this is where the word carries its deepest hope. The prophets promise that God will turn mourning into joy and bring the days of grief to a close. The word can also stand for the clothing that marks the state, and wisdom writers even prize the house of mourning over the house of feasting, since a funeral teaches what a party hides.