Proverbs 4:23
Keep your heart with all diligence, for out of it is the wellspring of life.
Proverbs 4:7
Wisdom is supreme. Get wisdom. Yes, though it costs all your possessions, get understanding.
Matthew 12:34-35
You offspring of vipers, how can you, being evil, speak good things? For out of the abundance of the heart, the mouth speaks.
Luke 6:45
The good man out of the good treasure of his heart brings out that which is good, and the evil man out of the evil treasure of his heart brings out that which is evil, for out of the abundance of the heart, his mouth speaks.
Jeremiah 17:9
The heart is deceitful above all things, and it is exceedingly corrupt: who can know it?
Matthew 15:19
For out of the heart come forth evil thoughts, murders, adulteries, sexual sins, thefts, false testimony, and blasphemies.
Deuteronomy 4:9
Only take heed to yourself, and keep your soul diligently, lest you forget the things which your eyes saw, and lest they depart from your heart all the days of your life; but make them known to your children and your children's children;
Psalm 139:23-24
Search me, God, and know my heart. Try me, and know my thoughts.
Proverbs 3:21
My son, let them not depart from your eyes. Keep sound wisdom and discretion:
Proverbs 11:16
A gracious woman obtains honor, but violent men obtain riches.
Proverbs 13:3
He who guards his mouth guards his soul. One who opens wide his lips comes to ruin.
Proverbs 22:5
Thorns and snares are in the path of the wicked: whoever guards his soul stays from them.
Proverbs 23:19
Listen, my son, and be wise, and keep your heart on the right path!
Proverbs 28:26
One who trusts in himself is a fool; but one who walks in wisdom is kept safe.
Ecclesiastes 5:13
There is a grievous evil which I have seen under the sun: wealth kept by its owner to his harm.
Mark 7:21-23
For from within, out of the hearts of men, proceed evil thoughts, adulteries, sexual sins, murders, thefts,
Mark 14:38
Watch and pray, that you may not enter into temptation. The spirit indeed is willing, but the flesh is weak."
Hebrews 12:15
looking carefully lest there be any man who falls short of the grace of God; lest any root of bitterness springing up trouble you, and many be defiled by it;
James 1:14-15
But each one is tempted, when he is drawn away by his own lust, and enticed.