Ezekiel 3:26-27
3:26 I will make your tongue stick to the roof of your mouth so that you will be silent and unable to reprove them, for they are a rebellious house.
3:27 But when I speak with you, I will loosen your tongue and you must say to them, ‘This is what the sovereign Lord says.’ Those who listen will listen, but the indifferent will refuse, for they are a rebellious house.