[SUP]4 [/SUP]Nicodemus said to Him, “How can a man be born when he is old? Can he enter a second time into his mother’s womb and be born?”
[SUP]5 [/SUP]Jesus answered, “Most assuredly, I say to you, unless one is born of water and the Spirit, he cannot enter the kingdom of God. [SUP]6 [/SUP]That which is born of the flesh is flesh, and that which is born of the Spirit is spirit.
When you accept Christ, you are born of the Spirit, your soul (which was dead) is "resurrected."
[SUP]6 [/SUP]Blessed and holy is he who has part in the first resurrection. Over such the second death has no power.
ALL OF US, every Christian since the Cross, take part in the first resurrection. Otherwise we aren't blessed and subject to the second death.
Christ (and no other) was the firstfruits of the resurrection. There is only one physical resurrection and it is of both the just and unjust and happens on the last day.
Those that came back to life with Christ and appeared to many either went to heaven with him or they died again. We aren't told. But I suspect they died again, the power of Christ's resurrection being so strong to temporarily revive them.