By what authority was Sunday Sabbath-keeping instituted?

Answer

By the authority of the Catholic Church. See page 131.

What instruction did the Apostle Peter give concerning the Gentiles who had believed?
What time intervenes between the two resurrections?
What relation does the Church of Rome sustain to other apostate churches?
What did they have in the law?
That there might be no misunderstanding, what did Moses do?
Whom did Christ indicate as fulfilling this prophecy?
How much of the land of Canaan did Abraham own in his lifetime?

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