The publication contains quotes on the topics of unbelief, lack of faith and faith in God. Quotations from the Bible are mainly taken from the writings of the Holy Fathers, where they are given in the appropriate meaning. All biblical texts are given in a modern translation, with the exception of the Psalms and some quotations of Scripture as part of patristic sayings, which in the Slavic translation are more consistent with the meaning in which the authors of the sayings use them. Since the sources were books in both modern and ancient editions, for uniformity, outdated grammatical forms were changed in accordance with the norms of the modern language.