By what authority was Sunday Sabbath-keeping instituted?

Answer

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

Who is the Comforter, and what was He to do?
What comment has the Apostle Paul made upon this commandment?
How does Paul again express this same truth?
What was given these martyrs?
22. How did He manifest His sympathy in the case of Mary and her friends weeping over the death of Lazarus?
What is an evidence of perfection?
Without this faith, will God answer prayer?

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