Ezekiel 16:34

And the contrary is in thee from other women in thy whoredoms, whereas none followeth thee to commit whoredoms, for she was no longer sought by them, and in that thou givest a reward, and no reward is given unto thee, therefore thou art contrary. It is the manner of sin, especially of idolatry, that it so enmeshes the sinner as to harden him to the point of utter shamelessness, no matter in which particular field his transgression may be.