The hell in Christianity
According to Christianity after the fall of ancestors, the souls of all people were getting into the hell including the souls of good and honest people. And these good people were sermonizing to cure the souls of sinners. After the sufferings and the death of Jesus Christ got into the hell with His human soul, destroyed it and released the souls of all righteous men taking them into the Kingdom of God (heaven). He also took the souls of sinners who accepted their guilty and asked to save them. And now the souls of good people get into the paradise.
But very often people push God from themselves committing shameful deeds and create the hell in their souls. And after the death souls have no possibility to change their state that is going to progress in eternity.
The destiny of non-Christians is unknown to people as it fully depends on the will of God and if He decided the person was good and is ready to honour the Christ the soul may be accepted into the paradise.
The final decision of the God will be made during the Last Judgement after which not only the souls of sinners but also their physical bodies will suffer. Jesus Christ said the worst sufferings will get people who new His commandments and didn't follow them as well as those who didn't know how to forgive other people. The worst punishment will be the moral suffering, the voice of the guilty consciousness when the souls wouldn't be able to be in the presence of the God and at the same time they couldn't exist without God.