Christ Preaching to the Spirits in Prison (1 Peter 3:19)

QUESTION: Explain I Peter 3:19, Christ preaching to the spirits in prison.

ANSWER: We have several times answered this extendedly. We now only quote Wesley's Notes: "He preached through the ministry of Noah to unholy men before the fiood; who were then reserved by the justice of God as in a prison, till he executed the sentence upon them all; and are now also reserved to the judgment of the great day."

— Steele's Answers pp. 196.