In particular, he picks on the Pharisees, which was a sect of Jews at the time who viewed themselves very ritualistic. Remember, Jesus himself is a Jewish preacher. He's a Jewish teacher. He is viewed as a rabbi himself. And when ye pray, ye shall not be as the hypocrites, for they love to stand and pray in the synagogues and in the corners of the street that they may be seen of men. So these hypocrites, they pray just so other people can see how religious they are. Verily I say unto you, they have received their war.