More on the 21

"Here is a call for the endurance of the saints, those who keep the commandments of God and their faith in Jesus. And I heard a voice from heaven saying, 'Write this: Blessed are the dead who die in the Lord from now on.' Blessed indeed,' says the Spirit, 'that they may rest from their labors, for their deeds follow them!'....

Then I saw heaven opened, and behold, a white horse! The one sitting on it is called Faithful and True, and in righteousness he judges and makes war. His eyes are like a flame of fire, and on his head are many diadems, and he has a name written that no one knows but himself. He is clothed in a robe dipped in blood, and the name by which he is called is The Word of God. And the armies of heaven, arrayed in fine linen, white and pure, were following him on white horses. From his mouth comes a sharp sword with which to strike down the nations, and he will rule them with a rod of iron. He will tread the winepress of the fury of the wrath of God the Almighty. On his robe and on this thigh he has a name written, King of kings and Lord of lords....

Then I saw a new heaven and a new earth, for the first heaven and the first earth had passed away and the sea was no more....And I heard a loud voice from the throne saying, 'Behold, the dwelling place of God is with man. He will dwell with them, and they will be his people, and God himself will be with them as their God. He will wipe away every tear from their eyes, and death shall be no more, neither shall there be mourning nor crying nor pain anymore, for the former things have passed away.' And he who was seated on the throne said, 'Behold, I am making all things new...The one who conquers will have this heritage, and I will be his God and he will be my son.'"

From the book of Revelation