In this article the topic of the sin in the works of G. Apollinaire and F. Dostoevsky is considered. For both authors the subject is interesting, but it is developed in different ways. The set of sins is the same, but the characters have nothing in common. Apollinaire and Dostoevsky have the same serious attitude to the sin, but the attitude to God is serious for Dostoevsky and ironic for Apollinaire. For Apollinaire God exists, but he is a part of the literary artistic world, he is also the character like all other characters. So he can make mistakes, be mean and unfair. So even the priests have to pray for forgiveness, as in the novel about the androgyne. For Dostoevsky God is not a character, he is a real Christian God, about whom we can speak only seriously.