Cross reference
Job 29:10
10 The voice of the nobles was hushed, And their tongue stuck to the roof of their mouth.
Psalms 137:6
6 Let my tongue stick to the roof of my mouth if I don't remember you; If I don't prefer Jerusalem above my chief joy.
Ezekiel 3:26
26 and I will make your tongue cleave to the roof of your mouth, that you shall be mute, and shall not be to them a reprover; for they are a rebellious house.