“Ephraim of Luntschitz” was a rabbi, preacher and biblical commentator. He was known for his brilliant sermons, in which he spared no sector. He criticized the rich for being greedy and pretensions of religious status based on money rather than good deeds. On the other hand he thought the poor did not “help themselves” by overly relying on charity. His sermons were collected and published in Ir Giborim, Revivot Efrayim and others. His Klei Yakar is included in many editions of the Bible as a standard commentary.