TSK · Exodus 4:12

I will raise up a prophet like you for them from among their fellow Israelites. I will put my words in his mouth and he will speak to them whatever I command.

Do not be like an unintelligent horse or mule, which will not obey you unless they are controlled by a bridle and bit.

He made my mouth like a sharp sword, he hid me in the hollow of his hand; he made me like a sharpened arrow, he hid me in his quiver.

Then the LORD reached out his hand and touched my mouth and said to me,“I will most assuredly give you the words you are to speak for me.

When they arrest you and hand you over for trial, do not worry about what to speak. But say whatever is given you at that time, for it is not you speaking, but the Holy Spirit.

But when they bring you before the synagogues, the rulers, and the authorities, do not worry about how you should make your defense or what you should say,

But the Advocate, the Holy Spirit, whom the Father will send in my name, will teach you everything, and will cause you to remember everything I said to you.