Proverbs 4:20-23

New International Version - UK

²⁰ My son, pay attention to what I say;
    turn your ear to my words.
²¹ Do not let them out of your sight,
    keep them within your heart;
²² for they are life to those who find them
    and health to one’s whole body.
²³ Above all else, guard your heart,
    for everything you do flows from it.