Hypocrisy.

And the other Jews dissembled likewise with him; insomuch that Barnabas also was carried away with their DISSIMULATION. But when I saw that they walked not uprightly according to the truth of the gospel, I said unto Peter before them all, If thou, being a Jew, livest after the manner of Gentiles, and not as do the Jews, why compellest thou the Gentiles to live as do the Jews? (Galatians 2:13-14 )