“God commanded Noah to make an Ark, in which he and his family — that is, his wife, his sons and his sons’ wives —were to be saved from the devastation of the Flood, together with the animals that went into the Ark in accordance with God’s directions.  Without doubt this is a symbol of the City of God on pilgrimage in this world: that is, of the Church which is saved through the wood upon which hung ‘the Mediator between God and men, the man Christ Jesus’.” (XV.26) ¹