By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What is the only unpardonable sin?
From what is a converted sinner saved?
What did Isaiah say Christ would do with the law?
For whose sake did Christ say the period of papal persecution would be shortened?
Do the Scriptures indicate that there will he violence manifested in this conflict?
How did Christ speak of the gathering of the Gentiles?
How does the Lord regard kindness shown to the poor?

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