By what authority was Sunday Sabbath-keeping instituted?

Answer

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

How are those described who heed this warning?
Who does God say shall die?
How did Christ's death affect the ceremonial law?
What are the objects of the Lord's Day Alliance of the United States?
How may grace and peace be multiplied in believers?
Upon what conditions are we promised needed blessings?
If one lacks wisdom, what is he told to do?

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