Internal or External?
Israel wanted a king. God told Samuel to anoint Saul to be king. 1 Samuel 9:2 tells us that he was tall and extremely handsome. He evidently had a heart of humility (1Sa 9:20,21; 10:21-23). But after two years as king, 1 Samuel 13 paints a different picture of Saul. Now Saul is taking credit for things that happened in his kingdom that he did not do. An observance of the fruit would indicate that he now had a proud heart. 1 Samuel 15:26-28 tells us that God then rejected Saul from being king and gave the kingdom to a neighbor that was better than he.