Upright
Authority through reason. The King decides on the merits, says out loud what standard he's using, and holds himself to it. It's the card for the moment a situation needs a ruling rather than more feeling.
Reversed
Reversed, logic is being used as a weapon, or a judgement has been handed down without anybody hearing the case.
If this is your card this month
What decision have you been making emotionally that needs a rule?
A card is a prompt rather than a forecast. It doesn't know what will happen, and the useful part is what you do with the question it hands you. We make that case at more length in not a prediction, a mirror.