Let the word of Christ dwell in you abundantly, in all wisdom: teaching and admonishing one another in psalms, hymns, and spiritual canticles, singing in grace in your hearts to God.
He said unto them: Therefore every scribe instructed in the kingdom of heaven, is like to a man that is a householder, who bringeth forth out of his treasure new things and old.
A good man out of the good treasure of his heart bringeth forth that which is good: and an evil man out of the evil treasure bringeth forth that which is evil. For out of the abundance of the heart the mouth speaketh.