Detail of the Dome of Saint Peter's Basilica.-Written : 'TU ES PETRUS' (You are Peter /Rock) (Tu es Pierre)Around the base of the drum we can read the solemn words from Matthew's Gospel with which Jesus invests Peter with supreme authority. The text reads: 'You are Peter ('Rock') and on this rock I will build my Church;to you I will give the keys of the kingdom of heaven.'The gigantic black letters (2 m. high) of this text on a gold background are lit by the light from 16 large windows.-Saint John and the Eagle. (Saint John et l'Ange)8;5 meter diameter medaillon.One of the four pendentives with the representation of the Evangelists.Mosaic on the Dome of Saint Peter's Basilica.By Giovanni de' Vecchi (1599)(Saint Peter's basilica; basilique Saint-Pierre; Petersdom)Vatican 2019