WT 1 December 1985 p17 par.16-20 Declared Righteous as a Friend of God
The “great crowd,” who survive the “great tribulation,” are not already declared righteous for life. We can see this from the fact that the chapter that mentions them goes on to say: “The Lamb, who is in the midst of the throne, will shepherd them, and will guide them to fountains of waters of life.” (Revelation 7:17) So, even though God previously counted them as righteous compared to mankind in general and as his friends, they need additional help, or steps to be taken, so that they can be declared righteous for life.
During the Millennium, the enthroned Lamb, Christ Jesus, together with his 144,000 associate kings and priests, will apply a program of spiritual and physical “curing of the nations.” (Revelation 22:1, 2) Such “nations” will be made up of the survivors of the great tribulation, any children born to them after Har–Magedon, and those who come back in the “resurrection of both the righteous and the unrighteous.” (Acts 24:15) All who put faith in Christ’s blood and accomplish appropriate “deeds” will eventually have their names written in “the book of life.”—Revelation 20:11-15.
By the end of Christ’s Millennial Reign, those of earth’s inhabitants who have shown that they accept Christ’s ransom and will live by Jehovah’s standards will have been raised to perfection. (Revelation 20:5) They will be as Adam was before he sinned. Like him, they will be tested as to their obedience.
Immediately after the Millennium, Christ will hand over to his Father a perfect human race. (1 Corinthians 15:28) “Satan will be let loose” for a decisive test of mankind. (Revelation 20:7, 8) The names of any who fail under test will not be “found written in the book of life.” They will symbolically be “hurled into the lake of fire,” which “means the second death.”—Revelation 20:15; 21:8.
Those who prove loyal to Jehovah will have their names indelibly written in the “book of life,” as being perfect in integrity and worthy of the right to everlasting life on earth. Jehovah himself will then declare them righteous in the complete sense.