The majority of Pharisees who clashed with Jesus over what constituted true worship with God, believe it or not, were the best of people. They devoted their lives completely to guiding souls to God. It would be easy to simply dismiss them as a group of pious hypocrites. We should assume their sincerity in being shocked by the way Jesus departed from Jewish tradition. To make matters worse he told them they had missed the whole point of religion, which was to worship God with a sincere heart. Because they have made external observance the supreme test of goodness, their religion had sunk to the level of mere lip service. Their worship was as worthless as an empty shell, nothing more than a pack of pious practises.