'Years' in the Bible

And he laid hold of the dragon, the ancient serpent who is the devil and Satan, and bound him a thousand years,

and cast him into the abyss, and shut it and sealed it over him, that he should not any more deceive the nations until the thousand years were completed; after these things he must be loosed for a little time.

And I saw thrones; and they sat upon them, and judgment was given to them; and the souls of those beheaded on account of the testimony of Jesus, and on account of the word of God; and those who had not done homage to the beast nor to his image, and had not received the mark on their forehead and hand; and they lived and reigned with the Christ a thousand years:

the rest of the dead did not live till the thousand years had been completed. This is the first resurrection.

Blessed and holy he who has part in the first resurrection: over these the second death has no power; but they shall be priests of God and of the Christ, and shall reign with him a thousand years.

And when the thousand years have been completed, Satan shall be loosed from his prison,