" When the sons of Korah are swallowed up by the earth for their rebellion against God, Numbers chapter 16 says that “they went down alive into Sheol, and the earth closed over them, and they perished from the midst of the assembly (v. 33).” People would not “fall alive” into death or the grave and then perish if Sheol was not a location. But they would die after they fall down into a location (Sheol) and the earth closes over them in that order. The divine being (elohim), known as the departed spirit of Samuel, “came up out of the earth” for the witch of Endor’s necromancy with Saul (1Sam. 28:13). This was not a reference to a body coming out of a grave, but a spirit of the dead coming from the underworld beneath the earth. "

― Brian Godawa , Noah Primeval (Chronicles of the Nephilim Book 1)