'Stiff' in the Bible

For I know thy rebellion, and thy stiff neck: behold, while I am yet alive with you this day, ye have been rebellious against the LORD; and how much more after my death?

Lift not up your horn on high: speak not with a stiff neck.

But they obeyed not, neither inclined their ear, but made their neck stiff, that they might not hear, nor receive instruction.