'Gnashes' in the Bible

His anger tears at me, and He harasses me.He gnashes His teeth at me.My enemy pierces me with His eyes.

The wicked person schemes against the righteousand gnashes his teeth at him.

[The] wicked sees [it] and is vexed. He gnashes his teeth and {becomes weak}. [The] desire of [the] wicked perishes.

and wheresoever it seizes him it tears him, and he foams and gnashes his teeth, and he is withering away. And I spoke to thy disciples, that they might cast him out, and they could not.