4 Bible Verses about Obstinacy Against God

And Jesus knowing it, said to them, Why do you reason because you have no bread? Do you not yet perceive nor understand? Is your heart hardened? Having eyes, do you not see? And having ears, do you not hear? And do you not remember? When I broke the five loaves for the five thousand, how many traveling baskets of fragments took you up? They said to him, Twelve.read more.
And when I broke the seven loaves for the four thousand, how many store-baskets of fragments took you up? And they said, Seven. And he said to them, Do you not yet understand?

Stiff necked, and uncircumcised in heart and ears, you always fight against the Holy Spirit; as your fathers did, you also do.

But in respect to Israel he says, All the day I stretched out my hands to a disobedient and contradicting people.

Concerning whom we have much to say, and that which is difficult to explain, because you have become dull of hearing. For you who ought on account of the time to be teachers, have need that one should teach you again what are the first rudiments of the oracles of God, and have need of milk and not solid food. For every one that partakes of milk is unskilful in the word of righteousness, for he is a babe;read more.
but solid food is for the perfect, having their perceptive faculties exercised by practice to distinguish both good and evil.