'Heart' in the Bible

When they return to you with all their heart and being in the land where they are held prisoner and direct their prayers toward the land you gave to their ancestors, your chosen city, and the temple I built for your honor,

They solemnly agreed to seek the Lord God of their ancestors with their whole heart and being.

All Judah was happy about the oath, because they made the vow with their whole heart. They willingly sought the Lord and he responded to them. He made them secure on every side.

He looked for Ahaziah, who was captured while hiding in Samaria. They brought him to Jehu and then executed him. They did give him a burial, for they reasoned, "He is the son of Jehoshaphat, who sought the Lord with his whole heart." There was no one in Ahaziah's family strong enough to rule in his place.

The king stood by his pillar and renewed the covenant before the Lord, agreeing to follow the Lord and to obey his commandments, laws, and rules with all his heart and being, by carrying out the terms of this covenant recorded on this scroll.