By what authority was Sunday Sabbath-keeping instituted?

Answer

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

How had Christ's teaching by parables been foretold?
What did Peter on the day of Pentecost tell his hearers to do?
What does the Papacy set forth as the mark, or sign, of its power and authority?
What means will be employed to compel all to receive this mark?
How many of these beings did John see around the throne?
Of what material is the wall constructed?
What will flow through the city?

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