Final answer:
The Iroquois refer to their god as 'the Great Spirit' according to 'The Iroquois Constitution'.
Step-by-step explanation:
According to the author of The Iroquois Constitution, the Iroquois refer to their god as "the Great Spirit." This term reflects the spiritual beliefs of the Iroquois people, or Haudenosaunee, meaning "people of the longhouse," which is also the name they used to describe themselves. These beliefs were integral to the governance and societal structure of the Iroquois Confederacy, an influential union that contributed to political ideas in the formation of the United States Constitution.