By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What is this change from death to life called?
What closed this terrible scene?
What relation does a justified person sustain to the law?
What further imperial legislation in behalf of Sunday observance was issued in 386?
What text definitely brings the millennium to view?
What scripture indicates that each child of God has an accompanying angel?
Whose names are on the twelve gates of the city?

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