7 Bible Verses about Apostasy, Cause

And the Lord said, Simon, Simon, behold, Satan has demanded to have you, to sift you as wheat;

For I know this, that there will come in amongst you after my departure grievous wolves, not sparing the flock;

For the time shall be when they will not bear sound teaching; but according to their own lusts will heap up to themselves teachers, having an itching ear;

There remains then a sabbatism to the people of God. For he that has entered into his rest, he also has rested from his works, as God did from his own. Let us therefore use diligence to enter into that rest, that no one may fall after the same example of not hearkening to the word.

for Demas has forsaken me, having loved the present age, and is gone to Thessalonica; Crescens to Galatia, Titus to Dalmatia.

And hearing these things they were cut to the heart, and gnashed their teeth against him.

And being disagreed among themselves they left; Paul having spoken one word, Well spoke the Holy Spirit through Esaias the prophet to our fathers, saying, Go to this people, and say, Hearing ye shall hear and not understand, and seeing ye shall see and not perceive. For the heart of this people has become fat, and they hear heavily with their ears, and they have closed their eyes; lest they should see with their eyes, and hear with their ears, and understand with their heart, and be converted, and I should heal them.