Proverbs 4:20-22 (NIV)
20My son, pay attention to what I say; listen closely to my words.
21Do not let them out of your sight, keep them within your heart;
22for they are life to those who find them and health to a man’s whole body.
John 6:63 (NIV)
63The Spirit gives life; the flesh counts for nothing. The words I have spoken to you are spirit and they are life.