I also
Matthew 10:16
Behold, I send you forth as sheep in the midst of wolves: be ye therefore wise as serpents, and harmless as doves.
Proverbs 26:4
Answer not a fool according to his folly, lest thou also be like unto him.
Proverbs 26:5
Answer a fool according to his folly, lest he be wise in his own conceit.
Luke 6:9
Then said Jesus unto them, I will ask you one thing; Is it lawful on the sabbath days to do good, or to do evil? to save life, or to destroy it?
Colossians 4:6
Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.