By what authority was Sunday Sabbath-keeping instituted?

Answer

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

What did the Lord command Abraham to do?
Of whom was Christ to be born?
What change did Daniel see take place in these horns?
What will God's faithful servants be doing at this time?
Through whom will come this redemption from the grave?
What is promised those who trust in Jesus?
How much did this promise comprehend?

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