“My son, be attentive to my words; incline your ear to my sayings. Let them not escape from your sight; keep them within your heart. For they are life to those who find them, and healing to all their flesh. Keep your heart with all vigilance, for from it flow the springs of life.”
Proverbs 4:20-23 ESV
https://bible.com/bible/59/pro.4.20-23.ESV