By which. In (Greek. en) which (condition).
also, &c. = having gone, He even preached.
preached. heralded. App-121. Not the Gospel, which would be App-121. He announced His triumph.
spirits. App-101. These were the angels of Genesis 6:2; Genesis 6:4. See App-23, where 2 Peter 2:4 and Jude 1:6 are considered together with this verse.