By what authority was Sunday Sabbath-keeping instituted?

Answer

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

Can man free himself from the dominion of sin?
In what act especially has Gods love been manifest?
8. How did Christ show from the Scriptures that the promised Saviour of the world must be both human and divine?
In what sense does the angel Gabriel explain John the Baptist to be the Elijah of Mal. 4: 5?
Who are to share this fate?
Why is sorrow better than laughter?
When praying what must we do in order to be forgiven?

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