Matthew 10:17-20

But beware of men, for they will hand you over to the courts and flog you in their synagogues. You will be brought before governors and kings because of Me, as a witness to them and to the Gentiles. But when they hand you over, do not worry about how or what you should say, for it shall be given to you in that hour what you should say. For it is not you speaking, but the Spirit of your Father speaking through you.