4 Bible Verses about Obstinacy Against God

And Jesus knowing says to them, Why do you reason because you have not bread? do you not yet know, nor understand? have you your heart still hardened? Having eyes, do you not see? having ears, do you not hear? and do you not remember? When I broke the five loaves to the five thousand, how many baskets full of fragments did you take up? They say to Him, Twelve.read more.
And when the seven loaves to the four thousand, how many baskets full of fragments did you take up? And they said, Seven. And He said to them, Do you not yet understand?

Ye stiffnecked and uncircumcised in heart and ears, you do always resist the Holy Ghost; as your fathers did, so do ye.

But to Israel he says, All day long have I reached forth my hands to a gainsaying and disobedient people.

Concerning whom there is much word to us, and difficult to speak, since you are dull of hearing. For indeed you, who ought to be teachers so far as time is concerned, have need that some one again teach you what are the rudiments of the beginning of the oracles of God; and you have need of milk, not solid food. For every one partaking of milk is unskilful in the word of righteousness; for he is a babe;read more.
but solid food belongs to the perfect, those having their senses disciplined by use unto the discernment both of the good and the evil.