By what authority was Sunday Sabbath-keeping instituted?

Answer

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

Is there salvation through any other?
What indwelling Power keeps such from sinning?
What does the prophet Jeremiah declare Christ to be?
How diligently should parents teach children God's Word?
Who was the last Babylonian king?
What effect did Christ's answers have upon the people?
Why does Christ desire this growth in His followers?

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