In The Talos Principle Elohim is your creator. He's the maker of the world and one of the main Characters in which you inhabit.
Name
Elohim's name comes from a Hebrew word for God. However, the program's title is named as the Holistic Integration Manager, and the server for the Talos project is designated EL-0. Thus, Elohim may also be a pronunciation of the designation EL-0 HIM.