Ecclesiastes 7:6
For as the crackling of thorns under a pot, so is the laughter of the fool: this also is vanity.
For as the crackling of thorns under a pot, so is the laughter of the fool,.... As thorns are weak, useless, and unprofitable; yea, hurtful and pernicious, and only fit for burning; so are foolish and wicked men, 2 Samuel 23:6; and as the noise and sound of the one under a pot is very short, they make a blaze for a while, and is soon over; so though the laughter of a fool is loud and noisy, it makes no melody, no more than the noise of thorns; and is but for a moment, and will be soon changed for weeping and howling, which will last for ever; see Job 20:5;
this also is vanity; the carnal mirth of wicked men.