In Canto IV, Dante addresses two theological issues of salvation. According to Christianity, all souls that lived sinless life but were not baptized, are denied salvation. Dante designates his first circle of hell, called Limbo, for those poor souls. In Limbo, they are not tortured, but the cannot have salvation. It was a very simple and brilliant solution. Yet, the Christian concept of Limbo present another problem. There were righteous souls that had lived before the creation of Christianity, like Noah and Abraham. The suave Dante alludes to the harrowing of Hell in lines 31-63 of Canto IV. There, Virgil tells Dante, the pilgrim, that he witnessed Jesus saving those righteous soul worthy of salvation.