In the Bible, the term "foolish man" often refers to an individual who lacks wisdom, understanding, or moral integrity, acting contrary to God's ways. The Hebrew word "כְּסִיל" (kesil) and the Greek word "ἀνόητος" (anoetos) are frequently used to describe such individuals. Proverbs provides extensive insight into the characteristics of a foolish man. For instance, Proverbs 1:7 states, "The fear of the Lord is the beginning of knowledge; fools despise wisdom and instruction." This highlights that a foolish man rejects divine wisdom, leading to poor decisions and ultimately spiritual ruin.Moreover, Jesus’ teachings in the New Testament reinforce this concept. In Matthew 7:26-27, He describes a foolish man as one who hears His words but does not act on them, likening him to a man who builds his house on sand, leading to destruction when trials come. This illustrates that foolishness in biblical terms is not merely an intellectual deficiency but a moral failing that stems from a lack of reverence for God and His teachings, resulting in a life that is unstable and unwise. The contrast between the foolish man and the wise one serves as a central theme in biblical wisdom literature, urging believers to seek godly wisdom and live righteously.