The Hallel is a set of psalms that is recited near the conclusion of the Seder. It was also sung by the priests of the Second Temple Period (516 b.c.e. – 70 c.e.) while the Passover sacrifices were being made. Traditionally, the Hallel includes all of Psalms 113-118 and Psalm 136. In the Seder, only Psalms 115-118 and Psalm 136 are recited in their entirety. The first two, 113 and 114, are left out. Psalm 136 is sometimes referred to as the “Great Hallel” because it enumerates many of the reasons for which God should be praised.