By what authority was Sunday Sabbath-keeping instituted?

Answer

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

Where in the Bible do we find the first prom Redeemer?
What is God's attitude toward the sinner?
How is the righteousness thus obtained described?
How are the character, work, period of supremacy, and great power of the beast described?
What may be known with equal certainty when these signs have been seen?
What question did the disciples ask Christ concerning His second coming?
How will the Lord manifest Himself to the wicked?

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