Mouths of the Prophets

Isaiah 6:7-7

Then one of the seraphs flew over to me with a live coal, which he had taken from the altar with a pair of tongs. He touched it to my lips and declared, “Now that this has touched your lips, your guilt shall depart and your sin be purged away.”

Jeremiah 1:9

The Lord put out His hand and touched my mouth, and the Lord said to me: Herewith I put My words into your mouth.

Ezekiel 3:1

He said to me, “Mortal, eat what is offered you; eat this scroll, and go speak to the house of Israel.”

Ezekiel has quite the dramatic experience of God preparing his mouth to speak His prophecies.