Cross reference
Job 29:10
10 The chiefs kept back their words, and their tongues were joined to the roofs of their mouths.
Psalms 137:6
6 If I let you go out of my thoughts, and if I do not put Jerusalem before my greatest joy, let my tongue be fixed to the roof of my mouth.
Ezekiel 3:26
26 And I will make your tongue fixed to the roof of your mouth, so that you have no voice and may not make protests to them: for they are an uncontrolled people.