“Let your speech be always with grace, seasoned with salt, that ye may know how ye ought to answer every man.” (Colossians 4:6)

“Those things, which ye have both learned, and received, and heard, and seen in me, do: and the God of peace shall be with you.” (Philippians 4:9)

“And the Jews marvelled, saying, How knoweth this man letters, having never learned?” (John 7:15)