[Boogieman]

“If there is a pattern here, then it might be that the second resurrection is not necessary or possible until after the second death which isn’t until the end of Revelation 20.”

There’s no resurrection possible after the second death. The second death is the lake of fire, and it is permanent. All those who are part of the second resurrection are at risk of the second death, as the second death comes at the end of the day of judgement. Those who are part of the first resurrection, Christians, are spared the judgement and the second death.

[Seven_0]

There’s no resurrection possible after the second death.

I understand your logic but the question does not go away just because you say so. The second resurrection is not specifically mentioned in scripture so wonder if there is one. The second resurrection is however implied by the term "first resurrection" and other things in scripture.

I can think of only one possibility. There are just two deaths. If we sat that Christ died in our place, we can not be talking about the first death since we all die. Perhaps Christ's death on the cross is a shadow of something we do not see.