a pack of cards is the devil's prayer book
a
a
a
pack
pak
pak
of
ɒv
ov
cards
kɑ:dz
kaadz
is
ɪz
iz
the
ðə
dhē
devil's
dɛvəlz
devēlz
prayer
preə
pre
book
bʊk
book

Definition & Meaning of "a pack of cards is the devil's prayer book"in English

a pack of cards is the devil's prayer book
01

used to suggest that gambling can be addictive and can lead people to engage in other vices or immoral activities 

Proverb

What is the origin of the proverb "a pack of cards is the devil's prayer book" and when to use it?

The origin of the proverb "a pack of cards is the devil's prayer book" is not precisely documented, but it is believed to have emerged in the 17th century, a time when gambling and games of chance were heavily criticized by religious groups. It suggests that card games and gambling, often associated with temptation and vice, can encourage individuals to lose control, leading them into behaviors that may be harmful or unethical. The saying highlights the moral danger that can come from engaging in such activities.

Examples
I know some people who refuse to play card games because they believe that a pack of cards is the devil's prayer book. 
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