For certain men have secretly infiltrated [your ranks]; they are men who had been written about long ago that they should be judged [and condemned] for perverting the unearned favor of our God into [a license for] living unrestrained, indecent lives, and who deny [the identity and work of] our only Master and Lord, Jesus Christ.

But you dearly loved ones, you should remember the message that was previously told to you by the apostles of our Lord Jesus Christ,

And you should show pity toward some people because they have doubts [regarding spiritual matters];

you should save others [from hell, as though you were] snatching them out of the fire. And you should show pity toward some people, [coupled] with a fear [of the consequences of sin], hating the clothing contaminated by a physical sore [i.e., hating sin so much as to avoid it at all costs].