'Stiff necked' in the Bible

Therefore, understand that Jehovah your God does not give you this good land, to possess it, for your righteousness. For you are a stiff-necked people.

And Jehovah spoke to me saying: I have seen this people, and, behold, it is a stiff-necked people.

Therefore, circumcise the foreskin of your heart, and be no longer stiff-necked.