By what authority was Sunday Sabbath-keeping instituted?

Answer

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

By whom was this fulfilled?
What, then, are the visible proofs of genuine justification by faith?
What question did others raise in opposition to this view?
By what is Grecia, the kingdom succeeding Medo-Persia, represented in the image?
Did Christ, while on earth, keep the Sabbath?
How much honor is due to Christ?
Because of disobedience, what experience came to Israel ?

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