3 Bible Verses about Destroying Oneself

He spoke about these things in all of his letters, which contain some parts that are difficult to understand. [Because of this], ignorant and unstable people twist [his writings], just as they also do to the other Scriptures, to their own destruction.

But just as there were false prophets among the people before, there will also be false teachers among you [Christians]. They will privately teach harmful doctrines that destroy people [spiritually], by even denying [that Jesus is] the Master, [and thereby] destroying themselves quickly.

For if I try to build up again what I had already destroyed [i.e., by returning to depend on compliance with the law of Moses to become right with God, after having rejected this system by trusting in Christ to save me], I would certainly be guilty of sin.