On what day was John in the Spirit?

Answer

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

What are some of the attributes of God?
What question did the disciples then ask?
How did Jesus answer them?
According to the New Testament, what day immediately precedes the first day of the week?
By whose Spirit did the prophets write?
What accompanies the earthquake?
What is an evidence of perfection?

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