Proverbs 27:19

As in water face reflects face, the heart of man is reveals the man.

Genesis 6:5

Jehovah saw how great man's wickedness on the earth had become. Every inclination of the thoughts of his heart was only evil all the time.

Psalm 33:15

He who fashions all their hearts observes and understands all their works.

Mark 7:21

It is from the heart that evil thoughts come such as: fornications, thefts, murders, adulteries,

James 1:22-25

Be doers of the word, and not hearers only, who deceive themselves.

Treasury of Scripture Knowledge

Summary

As in water face answereth to face, so the heart of man to man.

Bible References

In

James 1:22
Be doers of the word, and not hearers only, who deceive themselves.

So

Genesis 6:5
Jehovah saw how great man's wickedness on the earth had become. Every inclination of the thoughts of his heart was only evil all the time.
Psalm 33:15
He who fashions all their hearts observes and understands all their works.
Mark 7:21
It is from the heart that evil thoughts come such as: fornications, thefts, murders, adulteries,