The fool's bauble, the fool's fiddle

(Thomas Brooks, "The Crown and Glory of Christianity,
 or, HOLINESS, the Only Way to Happiness", 1662)

"The wicked freely strut about, when what is vile is
 honored among men." Psalm 12:8

"They love to indulge in evil pleasures." 2 Peter 2:13.

"Their souls delight in their abominations." Isaiah 66:3

Proverbs 10:23, "A fool finds pleasure in evil conduct."
Evil conduct is the fool's bauble, the fool's fiddle.
Fools take great delight and pleasure in doing evil.
Sin and wickedness are a sport or recreation to a fool.
It is a great pleasure and merriment to a fool—to do
wickedness.

Proverbs 14:9, "Fools make a mock of sin." They make a
jeer of sin—which they should fear more than hell itself!
They make a sport of sin—which will prove a matter of
damnation to them. They make a pastime, a game of
sin—which will them miserable to all eternity. They make
a mock of sin on earth—for which the devil will mock and
flout them forever in hell.

Justice will at last turn over such fools to Satan, who will
be sure to return mock for mock, jeer for jeer, and flout
for flout. Those who love such kind of pastime, shall have
enough of it in hell. All unbelievers are such fools—for
they delight and take pleasure in sin, which is the most
corrupting and dangerous thing in the world. "And so that
all will be condemned who have not believed the truth, but
have delighted in wickedness." 2 Thessalonians 2:12

Well, sirs! Sin is the poison of the soul, the nakedness of
the soul, the disease of the soul, the burden of the soul—
and if God in mercy does not prevent it—sin will prove the
eternal bane of the soul. Oh, then, how great is their folly,
who delight in sin, and who make a sport of it!