2 Peter 2:17

Overview - 2 Peter 2
He foretells them of false teachers, shewing the impiety and punishment both of them and their followers;
from which the godly shall be delivered, as Lot was out of Sodom;
10 and more fully describes the manners of those profane and blasphemous seducers, whereby they may be the better known, and avoided.
Treasury of Scripture Knowledge

2 Peter 2:17  (King James Version)
These are wells without water, clouds that are carried with a tempest; to whom the mist of darkness is reserved for ever.

are wells
Job 6:14-17 ; Jeremiah 14:3 ; Hosea 6:4 ; Jude 1:12 Jude 1:13

Ephesians 4:14

"The blackness, [zophos ,] of darkness," darkness itself, says Leigh.

4 ; Matthew 8:12 ; 22:13 25:30 Jude 1:6 Jude 1:13