Satan the Devil and his demons will no more live again than that symbolic wild beast and false prophet will live again. Their names are not written on any divine “book of life.”

This different kind of death as symbolized by the “lake of fire and sulphur” is therefore fittingly called “the second death.” This is what it stands for in the case of those humans on earth who enter into the thousand-year Judgment Day and who later do not get their names written in God’s “book of life.” The inspired Scriptures give the significance of the “lake of fire” for such ones unworthy of everlasting life, saying: “And death and Haʹdes were hurled into the lake of fire. This means the second death, the lake of fire. Furthermore, whoever was not found written in the book of life was hurled into the lake of fire.”​—Revelation 20:14, 15.

29. God’s permitting the camp of the holy ones and also the princely representatives of the beloved city to survive signifies that he has taken what action toward them?

²⁹ What a glorious eternity, therefore, awaits mankind! Look! Jehovah God permits the “camp of the holy ones” and the princely representatives on earth of the “beloved city” to survive the destruction of “Gog and Magog” and of Satan the Devil and his demons! What does this mean but that God has written their names on the “book of life” or has let their names stand written on the “book of life”? This means that He has declared them righteous, justified them, because of their maintaining their integrity to him, thus joining in with the Son of God, Jesus Christ, and the 144,000 joint heirs in vindicating the universal sovereignty of the Most High God, the Creator of all things good. Their being declared righteous by Jehovah God signifies that he has bestowed upon them the right to everlasting life in their Paradise home.