Keep and guard your heart with all vigilance and above all that you guard,
for out of it flow the springs of life. Proverbs 4:23
Do not be conformed to this world, but be transformed by the renewal of your mind, that by testing you may discern what is the will of God, what is good and acceptable and perfect. Romans 12:2
…be attentive to my words; incline your ear to hear 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. Proverbs 4:20-22
for while bodily training is of some value, godliness is of value in every way, as it holds promise for the present life and also for the life to come. 1 Timothy 4:8
But seek first the kingdom of God and his righteousness, and all these things will be added to you. Matthew 6:33