Revelation 20:4: “And I” [John] “saw thrones, and they” [The 144,000] “sat upon them,” [The thrones] “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" [Received eternal life] "and reigned with Christ a thousand years.”  

Revelation 20:5: “But the rest of the dead" [In Christ] "lived not again" [Receive eternal life] "until the thousand years were finished. This is the first resurrection.”

Revelation 20:6: “Blessed and holy is he that hath part in the first resurrection...”