On what day was John in the Spirit?

Answer

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

What is faith declared to be?
What provision has been made so that we may keep God's law?
How did Christ estimate the righteousness of the scribes and Pharisees?
In what words had the prophet Daniel foretold this?
According to the New Testament, what day immediately precedes the first day of the week?
Do they take any part in earthly things?
Does God willingly afflict the children of men?

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