The command:"Let the Word of Christ dwell in you richly, teaching and admonishing one another in all wisdom" -Colossians 3:16The reason:"The Word of God is quick, and powerful, and sharper than any two-edged sword, piercing even to the dividing asunder of soul and spirit, and of bone and marrow, and is a discerner of the thoughts and intents of the heart." -Hebrews 4:12