'Mourn' in the Bible

"Can the bridegroom's party mourn," He replied, "as long as the bridegroom is with them? But other days will come (when the Bridegroom has been taken from them)

"Alas for you who now have plenty to eat, because you will be hungry! "Alas for you who laugh now, because you will mourn and weep aloud!

In most solemn truth I tell you that you will weep aloud and lament, but the world will be glad. You will mourn, but your grief will be turned into gladness.

and that upon re-visiting you I may be humbled by my God in your presence, and may have to mourn over many whose hearts still cling to their old sins, and who have not repented of the impurity, fornication, and gross sensuality, of which they have been guilty.

Now, concerning those who from time to time pass away, we would not have you to be ignorant, brethren, lest you should mourn as others do who have no hope.

Afflict yourselves and mourn and weep aloud; let your laughter be turned into grief, and your gladness into shame.

He is coming in the clouds, and every eye will see Him, and so will those who pierced Him; and all the nations of the earth will gaze on Him and mourn. Even so. Amen.