For if after they have escaped the pollutions of the world through the knowledge of the Lord and Saviour Jesus Christ, they are again entangled therein, and overcome, the latter end is worse with them than the beginning.
After they - the seducers 'themselves' have escaped (2 Peter 2:19; note, Hebrews 6:4; Hebrews 6:6). Pollutions - which bring "corruption" (2 Peter 2:19).
Through - `IN.' Knowledge, х epignoosei (G1922)] - 'full knowledge.' The Lord and Saviour Jesus Christ - designating in full the great and gracious One from whom they fall. Latter end is worse ... than the beginning. Peter remembers Christ (Luke 11:26). "Worse" stands opposed to "better" (2 Peter 2:21).