By what authority was Sunday Sabbath-keeping instituted?

Answer

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

For what purpose did Christ come into the world?
Did Christ know beforehand the treatment He was to receive?
Why was it necessary to make this atonement?
In what two great commandments is the law of God briefly summarized?
By what may we know that we have passed from death unto life?
Because evil is not punished immediately, what presumptuous course do many pursue?
What kind of worship does the Savior call that which is not according to God's commandments?

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