On what day was John in the Spirit?

Answer

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

How may we determine the truthfulness of any doctrine ?
For what work was this baptism to prepare them?
What, according to the prophecy of Daniel, was to characterize the time of the end?
What were the names of these seven churches?
Why was this to be?
When asked if He was a king, what did Christ say?
What is promised to the willing and obedient?

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