Deuteronomy 10:16 Circumcise therefore the foreskin of your heart, and be no more stiff-necked. (WEB KJV JPS ASV WBS NIV)
Nehemiah 9:16 But they and our fathers dealt proudly, and hardened their neck, and hearkened not to Thy commandments, (See NIV)
Jeremiah 17:23 And they have not hearkened nor inclined their ear, And they stiffen their neck not to hear, And not to receive instruction. (See NIV)