"I have repeatedly offered $1,000 to anyone who can prove to me from the Bible alone that I am bound to keep Sunday holy. There is no such law in the Bible. It is a law of the holy Catholic Church alone. The Bible says, 'Remember the Sabbath day to keep it holy.' The Catholic Church says: 'No. By my divine power I abolish the Sabbath day and command you to keep holy the first day of the week.' And lo! The entire civilized world bows down in a reverent obedience to the command of the holy Catholic Church."
"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 solemnity from Saturday to Sunday."
“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 that we [Catholics] never sanctify.”
"Regarding the change from the observance of the Jewish Sabbath to the Christian Sunday, I wish to draw your attention to the facts:
"1) That Protestants, who accept the Bible as the only rule of faith and religion, should by all means go back to the observance of the Sabbath. The fact that they do not, but on the contrary observe the Sunday, stultifies them in the eyes of every thinking man.
"2) We Catholics do not accept the Bible as the only rule of faith. Besides the Bible we have the living Church, the authority of the Church, as a rule to guide us. We say, this Church, instituted by Christ to teach and guide man through life, has the right to change the ceremonial laws of the Old Testament and hence, we accept her change of the Sabbath to Sunday. We frankly say, yes, the Church made this change, made this law, as she made many other laws, for instance, the Friday abstinence, the unmarried priesthood, the laws concerning mixed marriages, the regulation of Catholic marriages and a thousand other laws.
"It is always somewhat laughable, to see the Protestant churches, in pulpit and legislation, demand the observance of Sunday, of which there is nothing in their Bible."