'Calamity' in the Bible

For although a person may toil with great wisdom and skill, he must leave his reward to someone who has not toiled for it. This also [is] vanity and a great calamity.

For man also does not know his time [of death]; like fish caught in a treacherous net, and birds caught in the snare, so the sons of men are ensnared in an evil time when a dark cloud suddenly falls on them.

Divide your merchandise among seven or even eight investments, for you do not know what calamity may happen on earth.