By what authority was Sunday Sabbath-keeping instituted?

Answer

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

Into what condition has sin brought the entire creation?
What is necessary in order that the preaching of the gospel may be profitable?
What gives victory in our conflicts with the world?
With what words do the Scriptures conclude the record of Christ's early life?
How was this fulfilled?
How was the fourth kingdom represented?
To whom has God given the earth?

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