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 is assured to the believer in Christ?
With what words do the Scriptures conclude the record of Christ's early life?
Of what was the, blood of all the sacrifices of the former dispensation only a type?
What besides creation were Israel to remember when they kept the Sabbath?
What was Satan's design in thus persecuting the church?
How enduring is this kingdom to be?
What is promised to the willing and obedient?

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