If these saints of Old have been resurrected back to life on earth in immortal bodies, how is that reconciled with what John has written in Jo 5 where he writes ALL of the dead shall be resurrected from the graves unto the resurrection of damnation, or resurrection of life?
John 5:28-29 (KJV) 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.
You need to go back just a couple verses before John 5:28-29, and you will find Christ's prediction of the resurrection of the Matthew 27:52-53 saints.
John 5:25 says, "Verily, verily, I say unto you,
The hour is coming, and
now is, when the dead shall hear the voice of the Son of God: and they that hear shall live."
That hour that was "COMING" in the future was the anticipated resurrection of the Matthew 27:52-53 saints our of their graves into immortal life.
That hour which Christ said "NOW IS" was referring to Christ's and the disciples' ability to raise individuals from the dead in the cities of Israel which they were then evangelizing. This was ONLY the Israelite cities who were experiencing these cases of individuals being raised to glorified immortal bodies. Christ specifically told the twelve, "Go
not into the way of the Gentiles, and into any city of the Samaritans enter ye not: But go rather to the lost sheep of the house of Israel....Heal the sick, cleanse the lepers,
raise the dead, cast out devils..." (Matt. 10:5-8).
Those few individuals that Christ and the disciples were then raising from the dead in those Israelite cities (during the hour that "now is") would later on be followed (in that "hour that is coming") by the many Matthew 27:52-53 saints who would hear the voice of the Son of God, and who would also be raised to immortal life. This was a resurrection of ONLY righteous saints - no wicked among them.
Yet in the
John 5:28-29 verse you brought up, Christ continued to describe
yet another resurrection for
another "hour that is coming" - this time
not being limited only to Israelites, but for ALL that were in the grave at that time (from Gentile lands as well as the cities of Israel), both good and evil, who would hear the voice of the Son of Man and come forth to receive either immortal life or destruction in that judgment.
You would also need to reconcile this partial resurrection in immortal bodies with what is written in Hebrews that tells us the Old Covenant faithful, even though of faith had not yet received the promise, because none shall be made perfect without all of us (believers)?
Hebrews 11:39-40 (KJV) And these all, having obtained a good report through faith, received not the promise: God having provided some better thing for us, that they without us should not be made perfect.
This is not a contradiction. "THESE ALL" who obtained a good report in the Hebrews 11 "Hall of Faith" were a particular list of the patriarchs by name, as well as Rahab, Sarah, and some of the named judges and prophets, and the persecuted Israelites who remained faithful to God under torture and persecution.
The Matthew 27:52-53 resurrected saints were
not included in those listed in Hebrews 11. That is because they were a specifically-chosen group of 144,000 First-fruits Jewish tribal members - the
only ones who could "learn that song" - because
their experience was a unique one that distinguished them from all the rest of the faithful. God chose those Matt. 27:52-53 resurrected saints to remain on earth in those glorified immortal bodies to serve in the early church in the role of apostles and prophets, evangelists, pastors and teachers (Ephesians 4:8-12). They were given as "gifts to men" to help perfect the saints for the work of the ministry, and to edify the body of Christ in those first-century days.
All of these resurrected saints which Christ spoke about in John 5:25-29 were taken to heaven in AD 70 when they all together met Christ in the air. Those who had been made alive by resurrection earlier than the others did not "precede them which are asleep". The dead saints in the ground rose first in AD 70 and were caught up in the clouds, and were immediately followed by those who had already been made "alive", but who had "remained" on the earth until then. Paul's described "rapture" of the resurrected saints in 1 Thess. 4 took place long ago.