Matthew 10:16-18

Behold, I send you forth as sheep in the midst of wolves: be ye therefore wise as serpents, and harmless as doves. {harmless: or, simple} But beware of men: for they will deliver you up to the councils, and they will scourge you in their synagogues; And ye shall be brought before governors and kings for my sake, for a testimony against them and the Gentiles.