ADAD is a very popular God. His name is possibly related to the Arabic Hadda, "to break," and Haddat, "to thunder." His Sumerian name is IŠKUR, and both names are often written with the symbol dIM. He is the son of Enlil or An, and is the twin brother of Enki. His chief religious center was Karkar, on the Tigris 200 miles southeast of Babylon. Adad/Iskur is often invoked in curses to break weapons and might, and appears alongside Šamaš in divination prayers and petitions for oracles (such as the Prayer of the Divination Priest in Šamaš Gate). The Storm-God, he brings the fertilizing rains annually, and occasionally unpredictably. As a God of both fertility and destruction, his character mirrors that of Ištar. Although no stories are extant in Akkadian or Sumerian with Adad/Iskur protagonist, the Syrian God Ba'al-Haddad is the most fully written of all the Ugaritic Gods.

At this Gate we shall consider Adad as the Feritizing Rain-God, who comes with the spring storms. As a God of Pestilence and destruction, we shall read the story of Erra and Išum. We shall read some of the SA.ZI.GA genre of incantations, whose purpose is to guarantee sexual potency; we shall also read an actual curse - of whose results we are unaware.