American Catholic Quarterly Review (January 1883):
Sunday...is purely a creation of the Catholic Church.
Catholic American Sentinel (June 1893):
Sunday...It is a law of the Catholic Church alone...
Pope Leo XIII, Praeclara Gratulationis Publicae (The Reunion of Christendom), June 20, 1894:
We hold upon this earth the place of God Almighty.
“Pope,” Ferraris’ Ecclesiastic Dictionary:
The Pope is of so great dignity and so exalted that he is not a mere man, but as it were God, and the vicar of God.
Letter from C.F. Thomas, Chancellor of Cardinal Gibbons on October 28, 1895:
Of course the Catholic Church claims that the change was her act…And the act is a MARK of her ecclesiastical power and authority in religious matters.
Our Sunday Visitor (April 18, 1915): 3:
The letters inscribed in the Pope’s miter are these: VICARIUS FILLII DEI, which is the Latin for, “Vicar of the Son of God.”
Chancellor Albert Smith for Cardinal of Baltimore Archdiocese, letter dated February 10, 1920:
If Protestants would follow the Bible, they should worship God on the Sabbath day by God is Saturday. In keeping the Sunday, they are following a law of the Catholic Church.
Catholic Record (September 1, 1923):
The [catholic] Church is above the Bible, and this transference of the Sabbath observance is proof of that fact.
John A. O'Brien, The Faith of Millions: the Credentials of the Catholic Religion Revised Edition (Our Sunday Visitor Publishing, 1974): 400-401:
But since Saturday, not Sunday, is specified in the Bible, isn't it curious that non-Catholics, who claim to take their religion directly from the Bible and not from the Church, observe Sunday instead of Saturday? Yes, of course, it is inconsistent; but this change was made about fifteen centuries before Protestantism was born, and by that time the custom was universally observed. They have continued the custom even though it rests upon the authority of the Catholic Church and not upon and explicit text in the Bible. That observance remains as a reminder of the Mother Church from which the non-Catholic sects broke away—like a boy running away from home but still carrying in his pocket a picture of his mother or a lock of her hair.
Stephen Keenan, Catholic—Doctrinal Catechism 3rd Edition: 174:
Question: Have you any other way of proving the Church has power to institute festivals of precept?
Answer: Had she not such power, she could not have done that in which all modern religionists agree with her, she could not have substituted the observance of Sunday the 1st day of the week, for the observance of Saturday the 7th day, a change for which there is no Scriptural authority.i
Catholic Priest T. Enright, CSSR, Kansas City, MO:
It was the holy Catholic Church that changed the day of rest from Saturday to Sunday, the 1st day of the week. And it not only compelled all to keep Sunday, but at the Council of Laodicea, AD 364, anathematized those who kept the Sabbath and urged all persons to labor on the 7th day under penalty of anathema.