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 whom is our worship justly due?
What two facts testify to the union of divinity and humanity in Christ?
What does Christ declare Himself to be?
12. What prohibition did God give His chosen people against intermarrying with the heathen nations about them, and why?
To whom did God commit the care and early training of His only begotten Son?
After whose body will these resurrected ones be fashioned?
What are we admonished to overcome?

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