In Healthy Heart: Spiritual Cheerios, we learn how to monitor the condition of our spiritual hearts. Just like Cain, it’s easy to give God our leftovers or let jealousy, pride, and self-deception take root. Through David’s prayer in Psalm 139, we’re challenged to let God search our hearts, confront hidden issues, and give Him our best—because real life change begins when we let God change our hearts.