By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What other book of the Bible is especially commended for our study?
How is Christ's resurrection foretold in the Psalms?
What record answers to this prophecy?
In receiving the Son what do we have in Him?
Why did John write his testimony concerning God's love and purpose in giving Christ?
What did the prophet say His name should be called?
What will finally he the privilege of God's children?

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