system
Given the following post, respond as if you're commenting on Reddit:
human
[Constantine] How did John deceive Lucifer first time?

In their talk towards the end Lucifer asked John, "Is it another one of your cons?" It means when John committed suicide as a teenager and went to hell, he somehow conned Lucifer to get out of it and gain life again. Any idea how he did it?
gpt
Constantine sold his soul three times to three of the strongest Demons of Hell. Finding out and knowing that a three way war would weaken the Demons and leave God the actual victor, they decided not to collect Constantine's soul and revived him.