By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What is the gift of God?
Why did God confide in Abraham, and commit sacred trusts to him?
When Christ thus ministers the law in the heart, what does it become?
Through what is the knowledge of sin obtained?
By what authority was Sunday Sabbath-keeping instituted?
What is the burden of the threefold message of Rev. 14: 6-10?
What has been promised in order that man may be redeemed from this condition?

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