by undertaking actions belonging only to God:
Some samples: “The priest has the power of the keys, or the power of delivering sinners from hell, of making them worthy of paradise, and of changing them from the slaves of Satan into the children of God. And God himself is obliged to abide by the judgment of his priests…The Sovereign Master of the universe only follows the servant by confirming in heaven all that the latter decides upon earth.” Liguori, “Dignity and Duties of the Priest”, pp. 27, 28. “Thus the priest may, in a certain manner, be called the creator of his Creator, since by saying the words of the consecration, he creates, as it were, Jesus in the sacrament, by giving him a sacramental existence, and produces him as a victim to be offered to the eternal Father…The power of the priest, is the power of the divine person; for the trans-substantiation of the bread requires as much power as the creation of the world.” Saint Bernadine of Sienna. “Priests are the saviors of the world.” Saint Jerome. As for her blasphemous actions, the Roman Catholic Church has committed the most blasphemous act of all. She altered the very law of God – the Ten Commandments. She dared to cancel the second commandment altogether, for it condemned her practices and rituals. And worse, she changed the day of worship in the fourth commandment from Saturday to Sunday. This was done although God gave Adam this perpetual command at creation and has confirmed it to us: “My covenant will I not break, nor alter the thing that is gone out of my lips.” Psalm 89:34. The Ten Commandments are the only portion of the Bible that was uttered by God’s voice in the presence of a congregation.
And God wrote them with His own finger