Why was King David called a 'man of God' when he committed sin?

Answer 1

David, the Great King of Israel, was known as such due to his military might and religious piety. According to The Bible, he is said to have conquered many of the kingdoms surrounding ancient Israel, pushing its borders outwards to their maximum historical extent. His successes were attributed to his faithfulness to God. In fact, the name David means "Beloved [of God]."

Answer 2

ALL of us commit sins(Romans 3:23)(James 1:14,15). Adam's disloyal act brought sin into the human family(Romans 5:12), so, with the exception of Jesus, every human being on earth has sinned in some way. David was no different. He was as imperfect as anyone else, but in many ways he was very special. From his youth on, he'd been a joyful servant of God and a lover of all God's works(Psalm 8:1-9), and God chose him to be king(1 Samuel 16:7,12-13)because he was 'a man after my own heart'(Acts 13:22). As a poet and songwriter, David had fashioned his life and music around his appreciation for God's creations(2Chronicles 7:6). He'd built up a record with God of fine works, faith(1 Samuel 17:45-51), and heartfelt appreciation(Psalm 103-105), so when he sinned seriously on a few occasions, it was radically out of character. Once reminded of his dreadful behavior, David showed his respect for God with characteristic humility, readily admitting that he'd done wrong(1 Chronicles 21:8), and willingly paying the price(2 Samuel 12:1-14). God is not fooled . He looks at our hearts and knows the motive behind our actions(1 John 3:19-20), and whether we are truly sorry for our sins. Though a sinner, David repented from the heart every time, changed his behavior and worked hard to live his life in line with God's commands to the best of his ability. For THIS reason, he is called a 'man of God'.