'Years' in the Bible

But leave out the court [of the Gentiles] which is outside the temple and do not measure it, because it has been given to the Gentiles (the nations); and they will trample the holy city for forty-two months (three and one-half years).

And I will grant authority to My two witnesses, and they will prophesy for twelve hundred and sixty days (forty-two months; three and one-half years), dressed in sackcloth.”

Then the woman fled into the wilderness where she had a place prepared by God, so that she would be nourished there for a thousand two hundred and sixty days (forty-two months; three and one-half years).

But the two wings of the great eagle were given to the woman, so that she could fly into the wilderness to her place, where she was nourished for a time and times and half a time (three and one-half years), away from the presence of the serpent (Satan).

And the beast was given a mouth (the power of speech), uttering great things and arrogant and blasphemous words, and he was given freedom and authority to act and to do as he pleased for forty-two months (three and a half years).

And he overpowered and laid hold of the dragon, that old serpent [of primeval times], who is the devil and Satan, and bound him [securely] for a thousand years (a millennium);

and the angel hurled him into the abyss, and closed it and sealed it above him [preventing his escape or rescue], so that he would no longer deceive and seduce the nations, until the thousand years were at an end. After these things he must be liberated for a short time.

And then I saw thrones, and sitting on them were those to whom judgment [that is, the authority to act as judges] was given. And I saw the souls of those who had been beheaded because of their testimony of Jesus and because of the word of God, and those who had refused to worship the beast or his image, and had not accepted his mark on their forehead and on their hand; and they came to life and reigned with Christ for a thousand years.

The rest of the dead [the non-believers] did not come to life again until the thousand years were completed. This is the first resurrection.

Blessed (happy, prosperous, to be admired) and holy is the person who takes part in the first resurrection; over these the second death [which is eternal separation from God, the lake of fire] has no power or authority, but they will be priests of God and of Christ and they will reign with Him a thousand years.

And when the thousand years are completed, Satan will be released from his prison (the abyss),