By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What home did God make for man in the beginning?
How is the church of the last days described?
Does God design that His great work of creating the heavens and the earth shall be remembered?
Through whom do we have sanctification?
What other sign, or wonder, appeared in heaven?
What is one good evidence of genuine repentance?
Why are its gates not to be closed?

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