In I Samuel 13:14, God refers to King David as a "man after my own heart." Though David wasn't perfect, we see from both this Scripture, as well as Acts 13:22, that what set him apart from others was his obedience to the Father. Jesus places a great deal of importance on our obedience to His Word, yet, at the same time, calls us "friends" instead of "servants" (John 15). Psalm 34 gives us some great insight into David's heart and is a guide for our own hearts, as we seek to love God with all our "heart, soul, mind, and strength."