By what authority was Sunday Sabbath-keeping instituted?

Answer

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

When Pilate heard that Christ was from Galilee, what did he do?
How should the youth he taught to regard the aged?
What assurance has God given of the judgment?
What did ancient Babylon do to all the nations?
What change will then take place in both the living and the sleeping saints?
Under whose influence are the nations to be assembled?
What is said of charity in the Scriptures?

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