Proverbs 4:23 “Keep your heart with all diligence, For out of it spring the issues of life.”
Proverbs 16:9 “A man’s heart plans his way, But the Lord directs his steps.”
Genesis 6:5 “Then the Lord saw that the wickedness of man was great in the earth, and that every intent of the thoughts of his heart was only evil continually.”
Romans 10:9-10 “that if you confess with your mouth the Lord Jesus and believe in your heart that God has raised Him from the dead, you will be saved. For with the heart one believes unto righteousness, and with the mouth confession is made unto salvation.”