By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What is God's attitude toward the sinner?
In what scripture does Christ apply the same emblem to Himself ?
What is the only way sinners may he justified, or made righteous?
For what purpose is the grace of Christ received?
7. Because Jesus healed a man on the Sabbath day, and told him to take up his bed and walk, what did the Jews do?
7. Seeing, then, that the Sabbath is holy, is to be kept holy, and is a day for holy convocations, what must be its character?
While in this condition, how much does one know about those he has left behind?

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