In the case of David, he had a raving lunatic trying to take his life.  Saul, being possessed at times by an evil spirit, made it his purpose to bring an end to David.  I think one of the character qualities that strikes me most about David is his trust that the Lord would be his defender.  If you think about his story, David had every right to believe that the throne of Israel was his.  He was anointed by Samuel when he was a young teenager, and then he brought down the giant, Goliath.  Even still, David was patiently waiting on the Lord’s timing for his reign to take place.  David knew that if God had ordained his kingship, then it would come to fruition at the appointed time.  So often, though, we are tempted to take matters into our own hands, to defend ourselves and to fight for whatever we believe is rightfully ours.  The example David gives is different.  The Lord was his true defender.  Do you feel God has promised you something?  If so, He doesn’t need your help in fulfilling that promise.  He will fulfill it in His time without any manipulation on your part.  The ways of the Lord are full of light; there is no darkness in them at all.  Trust in His timing, and you will not go wrong.