7 Bible Verses about Apostasy, Cause

Simon, Simon, behold, Satan has desired you, to sift like wheat;

For I know that after my departure grievous wolves will come among you, not sparing the flock,

for the time will come when they will not endure sound instruction, but will accumulate for themselves teachers according to their desires, pleasing their ear,

Therefore a sabbatism remains for the people of God. For he [Christ] who entered into his rest, also himself rested from his works, as God from his. Let us use diligence, therefore to enter into that rest [the heavenly rest], that no one may fall, after the same example of disobedience.

for Demas forsook me having loved the present life and went to Thessalonica, Cresces to Galatia, Titus to Dalmatia;

And when they heard these things they were enraged in their minds and gnashed their teeth upon him.

and disagreeing among themselves they were dismissed by Paul, saying one word; Well did the Holy Spirit speak by Isaiah the prophet to our fathers, saying, Go to this people and say, Hearing you shall hear and not understand, and seeing you shall see and not perceive; for the heart of this people has become hard, and they hear imperfectly with their ears, and they have shut their eyes, lest at any time they should see with their eyes, and hear with their ears, and understand with their hearts, and turn, and I should cure them.