By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What kind of faith avails with God?
In what promise was a Saviour from sin first revealed?
What instruction suggests the giving of thanks for daily food?
What was He to take away in the midst of this week?
By what are all men to be finally judged?
Who was the seed here referred to?
What assurance has God given to believers?

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