Paul said to Timothy, "The time will come when they will not endure sound teaching; and they will heap to themselves teachers, having itching ears."
And he goes on to say that they will believe the lie instead of the truth.
Why is that?
Because these teachers appeal to the natural life.
These teachers cover over evil.
Indeed, they will sometimes call evil good.
People do not like the teachers who tell them what is wrong, that this thing and that thing are contrary to God.
They like leavened bread, it pleases the flesh....
He says there will be leaven, there will be corruption and defilement everywhere...
But the teaching of the New Testament is: Keep yourselves pure.
See that your garments are not spotted.
Walk in this sinful world as those who do not belong to its nature.
Although there is leaven everywhere, you be the unleavened bread.
But, the world may not like you, the world will not like unleavened bread.
It does not please the flesh...
But the bread which is pure is pleasing to God.