For if these things are yours and abound, you will be neither barren nor unfruitful in the knowledge of our Lord Jesus Christ.

Therefore, brethren, be even more diligent to make your call and election sure, for if you do these things you will never stumble;

Doom of False Teachers

For if God did not spare the angels who sinned, but cast them down to hell and delivered them into chains of darkness, to be reserved for judgment;

For if, after they have escaped the pollutions of the world through the knowledge of the Lord and Savior Jesus Christ, they are again entangled in them and overcome, the latter end is worse for them than the beginning.