On what day was John in the Spirit?

Answer

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

How is the fulfilment of this prophecy recorded?
What has Christ brought to light through the gospel?
What special reason is given for this?
What is the one great feature by which the true God is distinguished from all false gods?
What does God say the Sabbath will be to those who hallow it, or keep it holy?
Will this he a time of judgment?
When is the resurrection of the righteous to take place?

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