" Marvel not at this: for the hour is coming, in the
which all that are in the graves shall hear his voice,
And shall come forth; they that have done good,
unto the resurrection of life; and they that have
done evil, unto the resurrection of damnation."
John 5:28-29

Jesus also gave them (Jewish leaders) a revelation
of the truth of the resurrection of the dead.

The Old Testament only hinted of it, but Jesus
was the one to bring the truth to light. The truth
of immortality and life beyond death and the
grave.

He didn't speak of the Christian's future as ones
of disembodied spirits; but that their bodies
should be raised from the graves and glorified.