“Among the doctrines laid down in a letter of Pope Innocent I, written in the last year of his papacy (416), is that Saturday should be observed as a fast-day....
“In 425, under Theodosius the Younger, abstinence from theatricals and the circus [on Sunday] was enjoined....
“In 538, at a council at Orleans, ... it was ordained that everything previously permitted on Sunday should still be lawful; but that work at the plow, or in the vineyard, and cutting, reaping, threshing, tilling, and hedging should be abstained from, that people might more conveniently attend church....
“About 590 Pope Gregory, in a letter to the Roman people, denounced as the prophets of Antichrist those who maintained that work ought not to be done on the seventh day.”—“Law of Sunday” by James T. Ringgold, pages 265-267.
The last paragraph of the foregoing quotation indicates that even as late as 590 a.d. there were those in the church who observed and who taught the observance of the Bible Sabbath, the seventh day.
22. What determines whose servants we are?
“Know ye not, that to whom ye yield yourselves servants to obey, his servants ye are to whom ye obey?” Rom. 6:16.
23. When tempted to bow down and worship Satan, what reply did Christ make?
“Get thee hence, Satan: for it is written, Thou shalt worship the Lord thy God, and Him only shalt thou serve.” Matt. 4:10, 11.
24. What do Catholics say of the observance of Sunday by Protestants?