Matthew 10:16-20

16 “Behold, I send you out as sheep in the midst of wolves. Therefore be wise as serpents, and harmless as doves.  17 But beware of men: for they will deliver you up to councils, and in their synagogues they will scourge you.  18 Yes, and you will be brought before governors and kings for my sake, for a testimony to them and to the Gentiles.  19 But when they deliver you up, don't be anxious how or what you will say, for it will be given you in that hour what you will say.  20 For it is not you who speak, but the Spirit of your Father who speaks in you.