Jesus was referring to the Pharisees as the hypocrites in these verses. Instead of praying in the quiet confines of the Temple in order to commune with God the Father, they would go out into the loud hubbub of the public market place. There, they would raise their hands to heaven, showcasing their piety, and pray…not addressing God, but attempting to attract attention of the people passing by. Their words were self-seeking, empty phrases that sought to impress others with their self-importance as they conspicuously stood on the street corner. Jesus said that their prayers were empty and nothing more would come from them…for prayer is meant to be sweet close fellowship between a Believer and God, not some spectacle to impress others with words.