Revelation 22:5

they shall reign forever and ever
Their initial reign is for one thousand years during the Millennial Kingdom (Rev. Rev. 20:4-6+). See Millennial Reign of the Saints. After the throne of the Son is merged with the Father, the saints continue to co-reign with Him in eternity. In Daniel’s night vision, the angel explained, “the saints of the Most High shall receive the kingdom, and possess the kingdom forever, even forever and ever” (Dan. Dan. 7:18).

Jesus told the church at Thyatira that the overcomer would co-rule with Him (Rev. Rev. 2:27+). See commentary on Revelation 2:27. He also told the church at Laodicea that the overcomer would sit with Him on His throne (Rev. Rev. 3:21+). See commentary on Revelation 3:21.