Proverbs 10:23

A fool doth wickedly and maketh but a sport of it; nevertheless it is wisdom for a man to beware of such.

Proverbs 15:21

A fool rejoiceth in foolish things; but a wise man looketh well to his own goings.

Proverbs 2:14

Which rejoice in doing evil, and delight in wicked things:

Proverbs 14:9

Fools make but a sport of sin; but there is favourable love among the righteous.

Proverbs 26:18-19

Like as one shooteth deadly arrows and darts out of a privy place, even so doth a dissembler with his neighbour.

Ecclesiastes 11:9

Be glad then, O thou young man, in thy youth, and let thine heart be merry in thy young days; follow the ways of thine own heart, and the lust of thine eyes: but be thou sure, that God shall bring thee into judgment for all these things.

Treasury of Scripture Knowledge

Summary

It is as sport to a fool to do mischief: but a man of understanding hath wisdom.

Bible References

General references

Proverbs 14:9
Fools make but a sport of sin; but there is favourable love among the righteous.
Proverbs 15:21
A fool rejoiceth in foolish things; but a wise man looketh well to his own goings.
Proverbs 26:18
Like as one shooteth deadly arrows and darts out of a privy place, even so doth a dissembler with his neighbour.
Ecclesiastes 11:9
Be glad then, O thou young man, in thy youth, and let thine heart be merry in thy young days; follow the ways of thine own heart, and the lust of thine eyes: but be thou sure, that God shall bring thee into judgment for all these things.