What does the Bible say about purity?

Purity in the biblical sense refers to being unmixed or free from any contamination or guilt. In Titus 1:15, the apostle Paul states, 'Unto the pure, all things are pure,' indicating that purity affects one’s perception of the world. To the pure, things are seen through a lens of Christ's righteousness, which means that believers, washed clean by the blood of Christ, are regarded as pure, free from sin. This concept is further supported in Matthew 5:8, which states, 'Blessed are the pure in heart, for they will see God,' emphasizing the importance of a pure heart as a condition to truly know God.