2Corinthians 3:6
Who also hath made us able ministers of the new testament; not of the
letter, but of the spirit: for the letter killeth, but the spirit giveth
life.
Romans 10:17 So then faith cometh by hearing, and hearing by
the word of God.
Ephesians 1:13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise,