By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What does the imputed righteousness of Christ enable God to do, and still be just?
How were the two on the way to Emmaus affected by Christ's conversation with them?
How early did Hannah dedicate her son Samuel to God?
How comprehensive are these commandments?
What statement shows that sin was in the world before the law was given on Mount Sinai?
Have the worthies of old gone to their reward?
How does Paul say the saints will he raised?

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