On what day was John in the Spirit?

Answer

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

How are His mercies continually manifested?
What witness does the true believer in Christ have that he is accepted of God?
What blessed experience follows upon the acceptance of Christ as our righteousness?
What great exchange has been wrought for us in Christ?
What is revealed in God's law?
What day is especially indicated as the day to prepare for the Sabbath?
What is promised those who trust in Jesus?

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