A criteria list...for the thousand year reign?

Rev 20:4 And I saw thrones, and they sat upon them, and judgment was given unto them: and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years. Rev 20:5 But the rest of the dead lived not again until the thousand years were finished. This is the first resurrection.

Has anyone ever read this and thought that there might be a criteria list to being raised to life during the 1000 yr reign of Christ? in particular....

"them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his mark upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years"

Does anyone have any insight to this?