2 Peter 2:9 - Coke's Commentary on the Holy Bible

The Lord knoweth how to deliver, &c.— We have already taken notice, that some have thought the sense is suspended from 2 Peter 2:4 to this verse. This then would be the connection, "If God spared not the angels that sinned,—nor the old world, nor the wicked inhabitants of Sodom and Gomorrah; and if, on the other hand, he saved the holy angels, and also Noah and Lot who were righteous men; then the Lord knoweth how to deliver, &c." Dr. Heylin, beginning each of the verses foregoing with Since—Since God did not spare, begins the present verse: It appears from these instances, that the Lord will deliver, &c. From the distinction which God hath already made in many cases between the righteous and the wicked, the apostle infers a righteous judgment to come, or a state of universal and exact retribution.