By what authority was Sunday Sabbath-keeping instituted?

Answer

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

Who did He say would enter the kingdom of heaven?
Until what time did the ceremonial law impose the service performed in the worldly sanctuary?
What will be the experience of those who say in their hearts that the Lord is not soon coming?
Unto whom are God's people to be gathered?
What parable illustrates practical Christian help work?
In what scripture are Christians recognized as Israel?
How readily will their wants be supplied?

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