By what authority was Sunday Sabbath-keeping instituted?

Answer

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

How does David express this same truth?
What is said of the strength and wisdom of God?
What is the only unpardonable sin?
What is the whole world called upon to do?
Who is this dragon?
For what purpose did the law enter?
How does the Apostle Peter close his second epistle?

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