Proverbs 4:23
Keep your heart with all diligence; for out of it are the issues of life.
Proverbs 4:7
Wisdom is the principal thing; therefore get wisdom: and with all your getting get understanding.
Matthew 12:34-35
O generation of vipers, how can you, being evil, speak good things? for out of the abundance of the heart the mouth speaks.
Luke 6:45
A good man out of the good treasure of his heart brings forth that which is good; and an evil man out of the evil treasure of his heart brings forth that which is evil: for of the abundance of the heart his mouth speaks.
Jeremiah 17:9
The heart is deceitful above all things, and desperately wicked: who can know it?
Matthew 15:19
For out of the heart proceed evil thoughts, murders, adulteries, fornications, thefts, false witness, blasphemies:
Deuteronomy 4:9
Only take heed to yourself, and keep your soul diligently, lest you forget the things which your eyes have seen, and lest they depart from your heart all the days of your life: but teach them to your sons, and your sons' sons;
Psalm 139:23-24
Search me, O God, and know my heart: try me, and know my thoughts:
Proverbs 3:21
My son, let not them depart from your eyes: keep sound wisdom and discretion:
Proverbs 11:16
A gracious woman retains honor: and strong men retain riches.
Proverbs 13:3
He that keeps his mouth keeps his life: but he that opens wide his lips shall have destruction.
Proverbs 22:5
Thorns and snares are in the way of the perverse: he that does keep his soul shall be far from them.
Proverbs 23:19
Hear you, my son, and be wise, and guide your heart in the way.
Proverbs 28:26
He that trusts in his own heart is a fool: but whosoever walks wisely, he shall be delivered.
Ecclesiastes 5:13
There is a great evil which I have seen under the sun, namely, riches kept by their owners to their hurt.
Mark 7:21-23
For from within, out of the heart of men, proceed evil thoughts, adulteries, fornications, murders,
Mark 14:38
Watch and pray, lest you enter into temptation. The spirit truly is ready, but the flesh is weak.
Hebrews 12:15
Looking diligently lest any man fall short of the grace of God; lest any root of bitterness springing up trouble you, and thereby many be defiled;
James 1:14-15
But every man is tempted, when he is drawn away of his own lust, and enticed.