Psalm 35:16
"With hypocritical mockers in feasts, they gnashed upon me with their teeth."
Cross References (ranked by relevance)
All thine enemies have opened their mouth against thee: they hiss and gnash the teeth: they say, We have swallowed her up: certainly this is the day that we looked for; we have found, we have seen it.
The wicked plotteth against the just, and gnasheth upon him with his teeth.
He teareth me in his wrath, who hateth me: he gnasheth upon me with his teeth; mine enemy sharpeneth his eyes upon me.
When they heard these things, they were cut to the heart, and they gnashed on him with their teeth.
Then led they Jesus from Caiaphas unto the hall of judgment: and it was early; and they themselves went not into the judgment hall, lest they should be defiled; but that they might eat the passover.
Therefore let us keep the feast, not with old leaven, neither with the leaven of malice and wickedness; but with the unleavened bread of sincerity and truth.