'Stubbornness' in the Bible

Remember your servants, Abraham, Isaac, and Jacob; don't look to the stubbornness of this people, nor to their wickedness, nor to their sin,

and it happen, when he hears the words of this curse, that he bless himself in his heart, saying, "I shall have peace, though I walk in the stubbornness of my heart, to destroy the moist with the dry."