Proverbs 4:23
Keep thy 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 thy getting get understanding.
Matthew 12:34-35
O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.
Luke 6:45
A good man out of the good treasure of his heart bringeth forth that which is good; and an evil man out of the evil treasure of his heart bringeth forth that which is evil: for of the abundance of the heart his mouth speaketh.
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 thyself, and keep thy soul diligently, lest thou forget the things which thine eyes have seen, and lest they depart from thy heart all the days of thy life: but teach them thy sons, and thy 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 thine eyes: keep sound wisdom and discretion:
Proverbs 11:16
A gracious woman retaineth honour: and strong men retain riches.
Proverbs 13:3
He that keepeth his mouth keepeth his life: but he that openeth wide his lips shall have destruction.
Proverbs 22:5
Thorns and snares are in the way of the froward: he that doth keep his soul shall be far from them.
Proverbs 23:19
Hear thou, my son, and be wise, and guide thine heart in the way.
Proverbs 28:26
He that trusteth in his own heart is a fool: but whoso walketh wisely, he shall be delivered.
Ecclesiastes 5:13
There is a sore evil which I have seen under the sun, namely, riches kept for the owners thereof 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 ye and pray, lest ye enter into temptation. The spirit truly is ready, but the flesh is weak.
Hebrews 12:15
Looking diligently lest any man fail 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.