How does Lazarus' death strengthen the faith of the disciples?

In John 11:15, Jesus expressed that He was glad He was not there when Lazarus died, as it would provide an opportunity for the disciples to believe more fully. Observing the miracle of raising Lazarus from the dead would enhance their confidence in Christ and His message, preparing them for the significant task of preaching the Gospel after His ascension. This incident underscores how God orchestrates events not just for individual benefit but to strengthen the faith of believers as a whole.