What do Catholics say of the observance of Sunday by Protestants?

Answer

"It was the Catholic Church which, by the authority of Jesus Christ, has transferred this rest to the Sunday
in remembrance of the resurrection of our Lord. Thus the observance of Sunday by the Protestants is an
homage they pay, in spite of themselves, to the authority of the [Catholic] church. "-"Plain Talk About the
Protestantism of Today," by Mgr. Segur, page 213.

To what knowledge would God have all men come?
21. What miraculous event occurred at the death of Christ, signifying that the sacrificial system was for ever at an end ?
At His ascension, how did the angels say Christ would come again?
Because of disobedience, what experience came to Israel ?
What will he receive who endures temptation?
When she persisted in her request, and fell down to worship Him, what did He say?
What will the saints do in the new earth?

Questions & Answers are from the book Bible Readings for the Home Circle