In chapter 5 of John (John 5:21-22), Jesus tells us that he has been given authority to raise the dead. Jesus then tells us about coming resurrections from the dead which will include large numbers of people. He plainly distinguishes one resurrection from another.
Resurrection of the dead and eternal judgment are two of the foundational oracles of God. Truah looks forward to the first of two resurrections. The article Truah: The first of only two resurrections will take you through those two resurrections and “eternal” judgment.