By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What will be the experience of those born of the Spirit ?
Why should wives he in subjection to their husbands?
In connection with what historical event was the old covenant made?
What example did Christ set in Sabbath observance?
Why did Christ, in the parable, reprove the man who hid his talent?
How was the faithfulness of this church commended?
What delights and pleasures await the child of God?

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