'Heart' in the Bible

Then Jehu drew his bow and shot Joram between the shoulders. The arrow went through his heart, and he slumped down in his chariot.

When he left there, he found Jehonadab son of Rechab coming to meet him. He greeted him and then asked, “Is your heart one with mine?”“It is,” Jehonadab replied.Jehu said, “If it is, give me your hand.”So he gave him his hand, and Jehu pulled him up into the chariot with him.

Nevertheless, the Lord said to Jehu, “Because you have done well in carrying out what is right in My sight and have done to the house of Ahab all that was in My heart, four generations of your sons will sit on the throne of Israel.”

Yet Jehu was not careful to follow the instruction of the Lord God of Israel with all his heart. He did not turn from the sins that Jeroboam had caused Israel to commit.

because your heart was tender and you humbled yourself before the Lord when you heard what I spoke against this place and against its inhabitants, that they would become a desolation and a curse, and because you have torn your clothes and wept before Me, I Myself have heard you—this is the Lord’s declaration—

Next, the king stood by the pillar and made a covenant in the presence of the Lord to follow the Lord and to keep His commands, His decrees, and His statutes with all his mind and with all his heart, and to carry out the words of this covenant that were written in this book; all the people agreed to the covenant.

Before him there was no king like him who turned to the Lord with all his mind and with all his heart and with all his strength according to all the law of Moses, and no one like him arose after him.