Sentence:  A proud, a vain, an envious, a jealous, an uncharitable heart may beat as well under the hair shirt of the self-torturing <WSD>flagellist</WSD> as under the purple robes of the monarch ; and Antony in his dreary cell and Simon Stylites on his lonely pillar may have been as far from the kingdom of heaven as the sensual Belshazzar at his luxurious banquet, or the worldly-minded Pilate in his tesselated hall. 
Meaning of the word marked with <WSD> tags:  One who whips him or herself as an act of religious penitence; flagellant.