1 Samuel 24:5
And it came to pass afterward, that David's heart smote him, because he had cut off Saul's skirt.
2 Samuel 24:10
And David's heart smote him after that he had numbered the people. And David said to the LORD, I have sinned greatly in what I have done: and now, I beseech thee, O LORD, take away the iniquity of thy servant; for I have done very foolishly.
2 Samuel 12:9
Why hast thou despised the commandment of the LORD, to do evil in his sight? thou hast killed Uriah the Hittite with the sword, and hast taken his wife to be thy wife, and hast slain him with the sword of the children of Ammon.
2 Kings 22:19
Because thy heart was tender, and thou hast humbled thyself before the LORD, when thou heardest what I spoke against this place, and against its inhabitants, that they should become a desolation and a curse, and hast rent thy clothes, and wept before me; I also have heard thee, saith the LORD.
1 John 3:20-21
For if our heart condemneth us, God is greater than our heart, and knoweth all things.