Saul

Chosen by God as Israel's first king when the people demanded a monarchy. Tall, impressive, and initially humble — he seemed like a great choice. But he repeatedly disobeyed God's direct instructions, made excuses instead of repenting, tried to kill David out of jealousy, consulted a witch, and ended his reign in chaos. Samuel's final word to him: 'Rebellion is like the sin of divination.' He died in battle against the Philistines.