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We believe that the earthly substances on the altar of the Lord, placed there for divine consecration by the priestly ministry, are ineffably, incomprehensibly, and wonderfully overturned by a heavenly power, and converted into the essence of the Body of the Lord, preserving the appearance and qualities of the species. [...] This is the faith that was held in ancient times and is now held by the Church, and has spread throughout the entire world by those of the Catholic name. "