The answer is: Imagine evil

Pro 12:20

In Proverbs 12:20, we see a sharp contrast between deceit and truth. The verse highlights that those who dwell on evil intentions nurture deception in their hearts. It's intriguing to consider the broader theme of wisdom in Proverbs; this book is filled with pithy sayings that contrast righteousness with wickedness, offering timeless advice for ethical living.

Interestingly, the Hebrew wisdom tradition often points out the importance of one's inner thoughts and attitudes. Deceit in the heart suggests that what we nurture internally eventually manifests in our actions. Just think about it – akin to the parable of the sower, where seeds fall on different types of soil, our thoughts can either flourish into goodness or rot into malevolence.

Moreover, ancient cultures often emphasized the significance of emotional and ethical integrity. Even in more contemporary discussions, effective leadership is marked by transparency and honesty, values time-tested by history. Throughout other scripture, like in Jeremiah 17:9, we read that "the heart is deceitful above all things," showing this provoking idea threads through both wisdom literature and prophetic warnings.

Isn't it fascinating to relate this proverb to Jesus’ teaching in the New Testament, where the importance of the heart is echoed, claiming that from the abundance of the heart, the mouth speaks? It seems wisdom remains consistent throughout the ages, urging us to keep our inner life pure to foster goodness in our relationships and community.