Jewish Feasts Feast of Month on Jewish Calendar Day Corresponding Month References Passover Nisan 14 Mar.–Apr. Ex. 12:1–14; Matt. 26:17–20 *Unleavened Bread Nisan 15–21 Mar.–Apr. Ex. 12:15–20 Firstfruits Nisan 16 Mar.–Apr. Lev. 23:9–14 or Sivan 6 May–June Num. 28:26 *Pentecost (Harvest or Weeks) Sivan 6 (50 days after barley harvest) May–June Deut. 16:9–12; Acts 2:1 Trumpets, Rosh Hashanah Tishri 1, 2 Sept.–Oct. Num. 29:1–6 Day of Atonement, Yom Kippur Tishri 10 Sept.–Oct. Lev. 23:26–32; Heb. 9:7