St Matthew 10:17-20

But beware of men. For they will deliver you up in councils, and they will scourge you in their synagogues. And you shall be brought before governors, and before kings for my sake, for a testimony to them and to the Gentiles: But when they shall deliver you up, take no thought how or what to speak: for it shall be given you in that hour what to speak. For it is not you that speak, but the Spirit of your Father that speaketh in you.