Long story short:
Christ built one city: The City of God.
His City was built on one foundation: St. Peter.
Anyone who rejects that implies infidelity, and shall see the City vindicated.
Christ has but one Bride: The Holy Mother Church.
Anyone who declares otherwise makes Christ a liar,
And since Christ is God, it is unfathomable for Him to contradict Himself.
"Tu es Petrus, et super hanc petram aedificabo Ecclesiam meam, et portae inferi non praevalebunt adversus eam."
"You are Peter, and on this rock I build My Church, and the gates of hell shall not prevail against it."
There are those that reject these statements.
Let these men and women face the Day of Wrath witnessing Holy Church vindicated.
Gloria in Excelsis Deo!