Unbalanced by Rage
Frustrated by the prolonged battle with the Philistines, Saul seeks the counsel of the Lord, who does not reply. The king discovers that Jonathan has eaten during the battle and wrongly deduces that this act offended the Lord. Saul resolves to kill Jonathan, but the Israelites deliver the youth from his father's misguided vengeance. (1 Kings 14:37–45)
A Royal Insubordinate
Afterwards, the Lord orders Saul, through Samuel, to destroy the Amalekites, stating that neither man nor beast is to be spared. In battle, Saul violently unhorses the Amalekite king Agag, but, contrary to the will of the Lord, takes Agag and his soldiers captive and collects the best of the enemy's cattle. (1 Kings 15:2–9)
Source: The Morgan Library