 During the times of the two Jewish Temples in Jerusalem, the Aaronic priests were responsible for the daily and special Jewish holiday offerings and sacrifices within the temples, these offerings are known as the "korbanot".In Hebrew, the word "priest" is "kohen" (singular כהן "kohen", plural כּהנִים "kohanim"), hence the family names "Cohen", "Cahn", "Kahn", "Kohn", "Kogan", etc.These families are from the tribe of Levi (Levites) and in twenty-four instances are called by scripture as such (Jerusalem Talmud to Mishnaic tractate Maaser Sheini p. 31a).