pride.

16 But after Uzziah became powerful, his pride led to his downfall. He was unfaithful to the LORD his God (2Chronicles 26)

Even when we think we have all our enemies, vices, and evils in check, we sometimes forget the most dangerous force is within our own souls. Uzziah was a mighty man at one time. He fought against countless opponents, and yet he conquered them and strengthened his nation. He was up against some hard situations, but somehow he managed to get through them. But amid all his ambitions and success, this great man and warrior failed to realize his greatest weakness was himself and his pride.

No man can escape this downfall. All men must bow down. Either you choose to be humble or you become humbled. Not only should we be aware of this in our every day encounters with other people and with God, but we should also be conscious of it when we're dealing with those who have fallen. It's a very painful thing to have such a downfall. We need to show them grace. I'm sure Uzziah was not only reminded daily of his failure, but I'm sure he was filled with an unfathomable amount of shame and regret. For all those Uzziahs out there, you're not alone. Return to God.