“Nowhere in the bible do we find that Jesus or the apostles ordered that the Sabbath be changed from Saturday to Sunday. We have the commandment of God given to Moses to keep holy the Sabbath day, that is, the seventh day of the week, Saturday. Today, most Christians keep Sunday because it has been revealed to us by the [Roman] church outside the bible.” Catholic Virginian, Oct. 3, 1947
“You may read the Bible from Genesis to Revelation, and you will not find a single line authorizing the sanctification of Sunday. The Scriptures enforce the religious observance of Saturday, a day which we never sanctified.” James Cardinal Gibbons, The Faith of Our Fathers (1917 ed.), pp.72,73
“If protestants would follow the Bible, they should worship God on the Sabbath Day. In keeping the Sunday they are following a law of the Catholic Church.” Albert Smith, chancellor of the Archdiocese of Baltimore, replying for the cardinal in a letter of Feb. 10, 1920.
Question: “Have you not any other way of proving that 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 first day of the week, for the observance of Saturday, the seventh day, a change for which there is no Scriptural authority” Stephen Keenan, A Doctrinal Catechism 3rd ed. p. 174
“Question: How prove you that the Church hath power to command feasts and holydays?
Answer: By the very act of changing the Sabbath into Sunday, which Protestants allow of; and therefore they fondly contradict themselves, by keeping Sunday strictly, and breaking most other feasts commanded by the same Church.” Henry Tuberville, An Abridgment of the Christian Doctrine (1833 approbation), p.58 (Same statement in Manual of Christian Doctrine, ed. by Daniel Ferris [1916 ed.], p.67)
“The Catholic Church,… by virtue of her divine mission, changed the day from Saturday to Sunday.” The Catholic Mirror, official organ of Cardinal Gibbons, Sept. 23, 1893.
“1. Is Saturday the 7th day according to the Bible and the 10 Commandments?
“I answer yes.
“2. Is Sunday the first day of the week and did the Church change the 7th day, Saturday, for Sunday, the 1st day?
“I answer yes.
“3. Did Christ change the day?
“I answer no! Faithfully yours,
“J. Cardinal Gibbons” Gibbons’ autograph letter.
Some theologians have held that God likewise directly determined the Sunday as the day of worship in the NEW LAW, that he himself has explicitly substituted sunday for the Sabbath. But this theory is entirely abandoned. It is now commonly held that God simply gave His church the power to set aside whatever day or days she would deem suitable as holy days. The church chose sunday, the first day of the week, and in the course of time added other days as holy days.” John Laux A Course in Religion for Catholic High Schools and Academies 1936, vol.1 p.51
“Question: Which is the Sabbath day?
Answer: Saturday is the Sabbath day.
Question: Why do we observe Sunday instead of Saturday?
Answer: We observe Sunday instead of Saturday because the Catholic Church transferred the solemity from Saturday to Sunday.” Peter Geiermann, The Convert’s Catechism of Catholic Doctrine (1946 ed.), p.50. Geiermann received the “apostolic blessing” of Pope Pius X on his labors, January 25, 1910.
“The Church changed the observance of the Sabbath to Sunday by right of the divine, infallible authority given to her by her Founder, Jesus Christ. The Protestant, claiming the Bible to be the only guide of faith, has no warrant for observing Sunday. In this matter the Seventh Day Adventist is the only consistent Protestant. The Catholic Universe Bulletin, Aug. 14, 1942, p.4
“The observance of Sunday by the Protestants is an homage they pay, in spite of themselves, to the authority of the [Catholic] church.” Monsignor Louis Segur, Plain Talk About the Protestantism of Today (1868), p. 21