a resurrection in the context of Christianity isn't a simple revivification like with what happened with lazarus.
lazarus was restored to his earthly life, his body reanimated, his breath returned, but he was still mortal. he would eventually die again.
his revivification was a sign, a miracle, but not the culmination of divine renewal. it was a return to the same kind of life he had before.

in contrast, Christ's resurrection is portrayed as a radical transformation, not just coming back to life but entering into a new kind of existence.
the resurrected Christ is described as having a glorified body, one that transcends physical limitations, appears and disappears at will, and is no longer subject to death.
it was a preview of what those who accept the gift of salvation are going to receive, the "firstfruits."
scripture shows we'll be able to eat but will not hunger, touch and be touched, and experience new things with new people.
imperishable, eternal, and intimately united with the God that defeated death.