By what authority was Sunday Sabbath-keeping instituted?

Answer

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

Through what instrumentality is conversion wrought?
Did Christ know beforehand the treatment He was to receive?
How does Jesus, through the Spirit, seek an entrance to every heart?
9. What testimony did the Apostle Peter bear concerning his experience on the mount of transfiguration?
What came out of one of the four horns of the goat?
How are the people described who are developed by the threefold message here referred to?
Of what material is the wall constructed?

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