Hope your having a great day. It's not strange at all because there are two different hells in the Bible. One is a temporary hell, the other is a permanent hell. The second one is the worst. The second hell is described as a lake of fire. The temporary one I would have to do more research to describe it accurately. I think one of the terms for it is the pit. I think it is described in different ways. So they are not cast into the same place where they were kept before their judgement. After their judgement they go to the lake of fire prepared for the devil and his angels. Hope this helps.