“But there were also false prophets among the people, even as there will be false teachers among you, who will secretly bring in destructive heresies, even denying the Lord who bought them, and bring on themselves swift destruction.”
and bring on themselves swift destruction
“Bring” means to bring something upon, make answerable. False teachers bring destruction upon themselves.
“Swift” here means these false teachers will face immanent ruin. It is coming soon.
Their self-deception led to their spiritual ruin (2:3; 3:16). They will eventually be condemned to hell for all eternity. They will bring a state of ruin upon their souls.
Apostates bring upon themselves damnation. They destroy themselves by their teaching. God does not send us to hell without the cooperation of our wills. When you land in hell, you will know that you sent yourself there. Do not blame it on the church or others. Blame it on yourself.
Ultimately, it is we ourselves who choose hell.
Destruction comes on souls not because they behave badly but because they straight-arm the Lord Jesus’ death for their sins.
We do not say, “I will go to the doctor as soon as I feel better.” If we do, we are a nut. Our pain recommends us to our physician. We do not say, “As soon as I straighten out my life, then I will come to Christ.” No, we go to the physician who forgives our sin. We do not make a moral life and then become a Christian; we become Christian and then Christ changes our lives.
Come to Christ. What do you have to lose? You tried everything else and they did not work. Everything else is secondary and peripheral.