On what day does John say he was in the Spirit?

Answer

"I was in the Spirit on the Lord's day." Rev. 1: 10.

Upon how many of the human race did death pass as the result of Adam's transgression?
Why were the miracles of Christ recorded by the inspired writers?
What were some of the results of the preaching of the gospel under the outpouring of the Spirit?
What is the whole world called upon to do?
How does Nehemiah describe the giving of the law at Sinai ?
Did Christ keep the Sabbath?
What further imperial legislation in behalf of Sunday observance was issued in 386?

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