Jospeh the patriarch by his glory prefigured the greatness of the future guardian of the Holy Family

You well understand, Venerable Brethren that these considerations are confirmed by the opinion held by a large number of the Fathers, to which the sacred liturgy gives its sanction, that the Joseph of ancient times, son of the patriarch Jacob, was the type of St. Joseph, and the former by his glory prefigured the greatness of the future guardian of the Holy Family. And in truth, beyond the fact that the same name -- a point the significance of which has never been denied -- was given to each, you well know the points of likeness that exist between them; namely, that the first Joseph won the favor and especial goodwill of his master, and that through Joseph's administration his household came to prosperity and wealth; that (still more important) he presided over the kingdom with great power, and, in a time when the harvests failed, he provided for all the needs of the Egyptians with so much wisdom that the King decreed to him the title "Savior of the world." Thus it is that We may prefigure the new in the old patriarch. And as the first caused the prosperity of his master's domestic interests and at the same time rendered great services to the whole kingdom, so the second, destined to be the guardian of the Christian religion, should be regarded as the protector and defender of the Church, which is truly the house of the Lord and the kingdom of God on earth. These are the reasons why men of every rank and country should fly to the trust and guard of the blessed Joseph. 

- Quamquam Pluries Encyclical of Pope Leo XIII

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