The 144,000 are holy ones purchased from humanity, raised to immortal heavenly life, and appointed to rule with Christ.
What Does Scripture Teach About the Literal Thousand-Year Reign of Christ?
Revelation teaches that Christ returns before a literal thousand-year reign, binds Satan, raises His co-rulers, and restores righteous rule.
What Does the Bible Really Say About the Millennium?
The millennium signifies Christ's 1,000-year reign after His return, involving the restoration of humanity, judgment, and ultimate victory over evil.

