In the Bible, the concept of a "clean heart" primarily refers to a heart that is pure, sincere, and free from sin or moral impurity. The phrase is most notably found in Psalm 51:10, where David pleads, "Create in me a clean heart, O God, and renew a right spirit within me." This plea for a clean heart comes after David's sin with Bathsheba, highlighting his desire for inner transformation and restoration of his relationship with God. A clean heart signifies an inner state of righteousness and integrity, reflecting a life aligned with God's will.The idea of a clean heart is further emphasized in the New Testament, particularly in Matthew 5:8, where Jesus states, "Blessed are the pure in heart, for they shall see God." This beatitude underscores the importance of purity and sincerity in one's inner life. The biblical notion of a clean heart is linked to repentance, the desire for holiness, and the transformative work of the Holy Spirit, who purifies believers from sin and empowers them to live righteously (Titus 3:5). Thus, a clean heart is not only a personal aspiration but also a divine gift that restores one’s relationship with God and enables faithful living.