To flesh this out a bit more: suppose Pilate locks Jesus in Joseph of Arimathea’s specially-prepared tomb with the standard Geiger-counter-and-poison setup. After three days the counter has a 50% chance of triggering, leaving the tomb in a superposition of two states:

1. The Geiger counter is triggered, Jesus dies for our sins and is resurrected, and humanity is saved.

2. The Geiger counter isn’t triggered and Jesus’ bid to save humanity fails. But he realizes he can still prevent the rest of humanity from collapsing into a pure damned state: he miraculously changes the wave function of the cave’s contents to be identical to 1, including his own mental state.

After three days the tomb is opened, and a superposition of Jesus 1 and Jesus 2 emerges. Because the two states are identical, observing it doesn’t cause it to collapse into either pure state. The system remains in superposition until someone tries to observe the fate of a “saved” soul.