Only one way...
In the movie Avengers: Infinity war (spoiler alert), Dr Strange looks into the future and sees millions of possible outcomes, but only a single one where victory is theirs. God did the same. He knew every possible future for us people, and the only one where we would be saved was by Jesus coming to love the perfect life and die on our behalf. And so, as Iron Man sacrificed himself to save the many, Jesus surrendered His life to let you have life.