A plain, garden-variety dilemma; a straight-up-and-down yes/no thing. This guy Jesus says he's the great I AM, the Messiah, the Son of God, the Great King promised by prophets of old. Either he's right (Jesus is Lord), or he isn't. We can pursue the "liar or lunatic?" thing if we've decided he isn't telling the truth. Pretty simple. You're free to decide whether or not he's lying. Many decided that this guy who gave eyesight to the blind and did other miracles was the Real Deal.