The word for bottomless pit in the original Greek is abussos, or abyss. That same word is used in Genesis 1:2 in the Greek version of the Old Testament in connection with the creation of the earth, where it is translated deep: the earth was without form and void, and darkness was on the face of the deep. The words refer to the earth in its dark, disorganized form before God brought order to it. Jeremiah, describing the earth during the 1,000 years, used virtually the same terms as Genesis 1:2: without form and void, no light, no man (Jeremiah 4:23,25,28). So the battered, dark earth with no people alive will be called the bottomless pit during the 1,000 years. Isaiah 24:22 also speaks of Satan and his angels during the 1,000 years as shut up in the prison.