TSK · Exodus 4:12

I will raise them up a prophet from among their brothers, like you; and I will put my words in his mouth, and he shall speak to them all that I shall command him.

Don't be like the horse, or like the mule, which have no understanding, who are controlled by bit and bridle, or else they will not come near to you.

and he has made my mouth like a sharp sword; in the shadow of his hand, he has hidden me: and he has made me a polished shaft; in his quiver has he kept me close:

Then Yahweh put forth his hand, and touched my mouth; and Yahweh said to me, "Behold, I have put my words in your mouth.

When they lead you away and deliver you up, don't be anxious beforehand, or premeditate what you will say, but say whatever will be given you in that hour. For it is not you who speak, but the Holy Spirit.

When they bring you before the synagogues, the rulers, and the authorities, don't be anxious how or what you will answer, or what you will say;

But the Counselor, the Holy Spirit, whom the Father will send in my name, he will teach you all things, and will remind you of all that I said to you.