Matthew 10:16-19

16Behold, I send you as sheep in the midst of wolves; be therefore prudent as the serpents, and guileless as the doves.

17But beware of men; for they will deliver you up to sanhedrims, and scourge you in their synagogues;

18and ye shall be brought before rulers and kings for my sake, for a testimony to them and to the nations.

19But when they deliver you up, be not careful how or what ye shall speak; for it shall be given to you in that hour what ye shall speak.