Teachings by one resuscitated from the dead might not be a big deal. It is feasible that someone might teach how to live and for this teacher to have died and been revived by medics. It does not add a lot of importance and weight to their teachings. But in the Book of Revelation we have teachings of a teacher alive from the dead never to die again. This teacher is done with death. Their lessons carry huge weight and importance. They have completely overcome death. They can teach how to overcome it permanently having done this themselves. Jesus made a big point of this by teaching about overcoming. His teachings about it are in this book. Baptism is an act of uniting with this overcomer, Jesus, forever alive from the dead.
