Guard Your Heart: Proverb 4:23, Proverbs 3:5-6.
Proverbs 4:23
Keep your heart with all vigilance,
for from it flow the springs of life.
Proverbs 3:5-6
Trust in the Lord with all your heart,
and do not lean on your own understanding.
6 In all your ways acknowledge him,
and he will make straight your paths.