By what authority was Sunday Sabbath-keeping instituted?

Answer

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

14. What beings of a higher order than man desire to study the truths revealed in the gospel of Christ?
What is one evidence of this change from death to life?
To whom, therefore, should we ascribe glory and honor?
What special message was given to Jonah for Nineveh?
What was indicated by the mixture of clay and iron in the feet and toes of the image?
How may we know that we love the children of God?
What does Christ say about our duty to the state?

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