This geometrical figure is used in the picture as a symbolic mark of perfection. On the twelve foundations of the wall are written the names of the twelve apostles of the Lamb. This is surely a sign that the apostles are the foundations, or founders, of the Christian faith among all nations. The city is measured by an angel before the seer’s eyes. This signifies, first, that the number of the chosen citizens of this city was foreseen from eternity. It also signifies that each of these elect has attained a certain definite measure of righteousness and holiness. When measured, the city proved to have equal length, breadth, and height, and its wall measured 144 cubits. All these numerical expressions are plainly used to signify perfection, firmness, and the wondrous symmetry of the whole building of the Church of God. The wall of the city is built of jasper, which in the Apocalypse signifies divine glory; see above, Rev 21:11. The city itself is of pure gold. The foundations of the city wall are made of twelve solid precious stones, and the twelve gates are made of twelve whole pearls. The street of the city is pure gold, like transparent glass. All these details express one and the same idea. In the heavenly Church of God everything is holy, pure, light-bearing, and firm. Everything in it is majestic, spiritual, and precious. The gold of grace and of God’s love is scattered everywhere in abundance for the full blessedness of its holy members.