'Wholeheartedly' in the Bible

The high places were not eliminated from Israel, yet Asa was wholeheartedly devoted to the Lord throughout his lifetime.

Then he charged them saying, “Thus you shall do in the fear of the Lord, faithfully and wholeheartedly.

He wholeheartedly and successfully reinstituted service in God's temple and obedience to the law, in order to follow his God.