By what authority was Sunday Sabbath-keeping instituted?

Answer

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

For what work was this baptism to prepare them?
To whom do the things which have been revealed belong ?
What relation does the Church of Rome sustain to other apostate churches?
Where do the dead sleep?
How many distinct classes will have a resurrection?
What does Paul say of their number?
What promise was made to Abraham concerning the land?

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