Treasury of Scripture Knowledge
"Alas for the world because of causes of falling! They cannot but come, but alas for each man through whom they come!
Jesus said to His disciples, "It is inevitable that causes of stumbling should come; but alas for him through whom they come!
and that from among your own selves men will rise up who will seek with their perverse talk to draw away the disciples after them.
1 Timothy 4:1
Now the Spirit expressly declares that in later times some will fall away from the faith, giving heed to deceiving spirits and the teachings of demons;
2 Peter 2:1
But there were also false prophets among the people, as there will be teachers of falsehood among you also, who will cunningly introduce fatal divisions, disowning even the Sovereign Lord who has redeemed them, and bringing on themselves swift destruction.
and a sword will pierce through your own soul also; that the reasonings in many hearts may be revealed."
2 Corinthians 13:5
Test yourselves to discover whether you are true believers: put your own selves under examination. Or do you not know that Jesus Christ is within you, unless you are insincere?