I (currently) see belief in god/jesus this way.
Humans since evolving to self awareness (conscious) became terrified of being alone, to being if you like the ultimate decision maker for themselves and any who relied on them. Parents take this role but once we become adults we become personally responsible for our actions and inevitable errors. That's how we learn and continue to evolve.
If I pray to the spirit of my prey I will succeed in the hunt. Not such a stretch to say if I pray to god/jesus I will get everlasting life.
Both infantile, superstitious and stunt our growth as humans.