15. To execute judgment upon all and to convict all the impious (unholy ones) of all their ungodly deeds which they have committed [in such an] ungodly [way], and of all the severe (abusive, jarring) things which ungodly sinners have spoken against Him.
16. These are inveterate murmurers (grumblers) who complain [of their lot in life], going after their own desires [controlled by their passions]; their talk is boastful and arrogant, [and they claim to] admire men's persons and pay people flattering compliments to gain advantage.
17. But you must remember, beloved, the predictions which were made by the apostles (the special messengers) of our Lord Jesus Christ (the Messiah, the Anointed One).
18. They told you beforehand, In the last days (in the end time) there will be scoffers [who seek to gratify their own unholy desires], following after their own ungodly passions.
19. It is these who are [agitators] setting up distinctions and causing divisions–merely sensual [creatures, carnal, worldly-minded people], devoid of the [Holy] Spirit and destitute of any higher spiritual life.
20. But you, beloved, build yourselves up [founded] on your most holy faith [make progress, rise like an edifice higher and higher], praying in the Holy Spirit;