Luke 6:25 pronounces woe on those who laugh now, for they will mourn — directly echoing the vanity of fool's laughter.

Psalm 58:9 uses the same 'thorns under a pot' image for sudden destruction — reinforcing the fleeting nature of fool's laughter.

Proverbs 14:13 reveals that laughter often hides sorrow, reinforcing that the fool's laughter here is hollow and vain.

James 4:9 commands turning laughter to mourning, echoing the same dismissal of worldly joy as fleeting and empty.