The foundations of the wall of the City were ornamented with every kind of precious stone. The first foundation stone was a jasper; the second a sapphire; the third a chalcedony; the fourth an emerald;

Let him who has ears hear what the Spirit is saying to the Churches. To him who conquers-- to him I will give a share of the mystic manna, and I will give him a white stone; and on the stone shall be inscribed a new name, which no one knows except him who receives it."