On the venerable day of the sun let the magistrate and people residing in cities rest, and let all workshops be closed. In the country however, persons engaged in agricultural work may freely and lawfully continue their pursuits; because it often happens that another day is not so suitable for grain growing or for vine planting; lest by neglecting the proper moment for such operations the bounty of heaven should be lost. —Schaff’s History of the Christian Church, vol. III, chap. 75.
Q. Which is the Sabbath day?A. Saturday is the Sabbath day.Q. Why do we observe Sunday instead of Saturday?A. We observe Sunday instead of Saturday because the Catholic Church, in the Council of Laodicea, (AD 336) transferred the solemnity from Saturday to Sunday….Q. Why did the Catholic Church substitute Sunday for Saturday?A. The Church substituted Sunday for Saturday, because Christ rose from the dead on a Sunday, and the Holy Ghost descended upon the Apostles on a Sunday.Q. By what authority did the Church substitute Sunday for Saturday?A. The Church substituted Sunday for Saturday by the plenitude of that divine power which Jesus Christ bestowed upon her!—Rev. Peter Geiermann, C.SS.R., (1946), p. 50.
Q. Has the [Catholic] church power to make any alterations in the commandments of God?A. ...Instead of the seventh day, and other festivals appointed by the old law, the church has prescribed the Sundays and holy days to be set apart for God’s worship; and these we are now obliged to keep in consequence of God’s commandment, instead of the ancient Sabbath.—The Catholic Christian Instructed in the Sacraments, Sacrifices, Ceremonies, and Observances of the Church By Way of Question and Answer, RT Rev. Dr. Challoner, p. 204.
Q. How prove you that the church hath power to command feasts and holy days?A. 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.Q. How prove you that?A. Because by keeping Sunday, they acknowledge the church’s power to ordain feasts, and to command them under sin; and by not keeping the rest [of the feasts] by her commanded, they again deny, in fact, the same power.–Rev. Henry Tuberville, D.D. (R.C.), (1833), page 58.
Q. Have you any other way of proving that the Church has power to institute festivals of precept?A. 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.–Rev. Stephen Keenan, (1851), p. 174.
The Church of God has thought it well to transfer the celebration and observance of the Sabbath to Sunday!–p 402, second revised edition (English), 1937. (First published in 1566)
They [the Catholics] allege the Sabbath changed into Sunday, the Lord’s day, contrary to the decalogue, as it appears; neither is there any example more boasted of than the changing of the Sabbath day. Great, they say, is the power and authority of the church, since it dispensed with one of the ten commandments.—Art. 28.
“For centuries millions of Christians have gathered to worship God on the first day of the week. Graciously He has accepted this worship. He has poured out His blessings upon Christian people as they have sought to serve Him. However, as one searches the Scriptures, he is forced to recognize that Sunday is not a day of God’s appointment… It has no foundation in Scripture, but has arisen entirely as a result of custom,” says Frank H. Yost, Ph.D. in The Early Christian Sabbath.