7 Bible Verses about Apostasy, Cause

"Simon, Simon, behold, Satan has demanded to sift you like wheat,

I know that after my departure fierce wolves will come in among you, not sparing the flock.

For there will be a time when they will not put up with sound teaching, but in accordance with their own desires, they will accumulate for themselves teachers, {because they have an insatiable curiosity},

Consequently a sabbath rest remains for the people of God. For the one who has entered into his rest has also himself rested from his works, just as God [did] from his own [works]. Therefore, let us make every effort to enter into that rest, in order that no one may fall in the same pattern of disobedience.

For Demas deserted me, [because he] loved the present age, and went to Thessalonica. Crescens [went] to Galatia; Titus [went] to Dalmatia.

Now [when they] heard these [things], they were infuriated in their hearts and gnashed [their] teeth at him.

So being in disagreement with one another, they began to leave [after] Paul made one statement: "The Holy Spirit spoke rightly through the prophet Isaiah to your fathers, saying, 'Go to this people and say, "{You will keep on hearing} and will never understand, and {you will keep on seeing} and will never perceive. For the heart of this people has become dull, and with [their] ears they hear with difficulty, and they have shut their eyes, lest they see with [their] eyes, and hear with [their] ears, and understand with [their] heart, and turn, and I would heal them." '