In Matthew 27:52-54 we see a resurrection of saints, either OT or those saved during Jesus earthly ministry who passed away. Am I correct in teaching that the first resurrection is a kind of resurrection (resurrection unto, or of life) and not just the number order, although it is that as well, and that there are phases to it?
The people from Matt. 27:52-54 are likely a combination of OT saints and believers alive when Jesus came but who died before the cross, and are part of the first resurrection. So are those who are resurrected at the rapture (1 Thes. 4:16) and those who are resurrected at the 2nd Coming (Daniel 12:2, Rev. 20:4). The first resurrection is both first in order, with several phases, and the resurrection to eternal life. The resurrection at the end of the Millennium is for the unsaved dead of all ages, and perhaps believers who die during the Millennium, and takes place 1,000 years later (Rev. 20:11-15).
I mention the possibility of Millennial believers being included because of Rev. 20:15, “If anyone’s name was not found written in the book of life he was thrown in the lake of fire.” It seems to me that unless there are some whose name will be found written in the book of life this comment would be unnecessary.