Revelation 20:7

5 The rest of the dead did not come back to life until the thousand years were complete. This is the first resurrection.

6 Blessed and holy are those who share in the first resurrection! The second death has no power over them, but they will be priests of God and of Christ, and will reign with Him for a thousand years.

When the thousand years are complete, Satan will be released from his prison,

8 and will go out to deceive the nations in the four corners of the earth—Gog and Magog—to assemble them for battle. Their number is like the sand of the seashore.

9 And they marched across the broad expanse of the earth and surrounded the camp of the saints and the beloved city. But fire came down from heaven and consumed them.

Here the Bible tells a story about someone else. Ask yourself what it can say to us today. Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB
When the thousand years are complete, Satan will be released from his prison,
KJV
And when the thousand years are expired, Satan shall be loosed out of his prison,
WEB
And after the thousand years, Satan will be released from his prison
ASV
And when the thousand years are finished, Satan shall be loosed out of his prison,
DARBY
And when the thousand years have been completed, Satan shall be loosed from his prison,
BLB
And when the thousand years should be completed, Satan will be released out of his prison,
ÅB
Og når de tusen år er til ende, skal Satan løses av sitt fengsel.
OTB
Når de tusen år er avsluttet, skal Satan slippes fri fra sitt fengsel,
B1930
Og når de tusen år er til ende, skal Satan løses av sitt fengsel.

Study notes (Tyndale)

Original text and word study

Cross references