Ecclesiastes 10:2 says, “The heart of the wise inclines to the right, but the heart of the fool to the left.” A fool is one whose wayward heart turns continually toward foolishness. “Fools speak foolishness and make evil plans” (Isaiah 32:6). Proverbs 26:11 says, “As a dog returns to its vomit, so fools repeat their folly.” Fools do not learn their lessons from the mistakes they make. They continue doing the same foolish things over and over again, to their own destruction (Proverbs 18:7)."

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