In the old testament there is a jewish concept of sheol. A place where the souls of the dead go to await judgement. It is a sort of timeless limbo and all souls go there except the few who were caught up to heaven by God (i.e. Elijah). But what of the new testament?
Jesus refers to hell in several parables:
I use these verses because they seem, at first glance, to be the most supportive of the doctrine of eternal torture. But all of these references come from parables which we know to be metaphors and not actual literal descriptions of hell. But we have a book which gives us a good description of the judgement and condemnation of sinners.
Revelations 21: 5-8
6He said to me: "It is done. I am the Alpha and the Omega, the Beginning and the End. To him who is thirsty I will give to drink without cost from the spring of the water of life. 7He who overcomes will inherit all this, and I will be his God and he will be my son. 8But the cowardly, the unbelieving, the vile, the murderers, the sexually immoral, those who practice magic arts, the idolaters and all liars—their place will be in the fiery lake of burning sulfur. This is the second death."