By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What other title is given this revelation of God to man?
From what is a converted sinner saved?
What is another evidence of divine acceptance?
19. What message did Christ send to John the Baptist while John was in prison, to strengthen his wavering faith?
What is said of his mother and his grandmother?
What are the wages of sin?
15. Because Solomon asked for wisdom rather than for long life and riches, what besides wisdom did God give him?

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