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.

What, therefore, must he the character of His Word?
How many are affected by Adam's transgression ?
How should the truth ever be cherished?
To whom do the things which have been revealed belong ?
How did Jesus show His loyalty to God?
What words to this church show the second advent near?
When praying what must we do in order to be forgiven?

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