This book takes us back to our beginning - to paradise, to explore what happened there with the first people and how this happened, called the Fall of people, influenced human nature, the life, being, relationships and way of life of people who were expelled from paradise and have been living on earth for more than 7 thousand years. Theological study of the text of the book of Genesis helps the reader to learn about the origin of sin among people, about the terrible changes in human nature and the terrible consequences in human life brought about by the fall of the first people. This knowledge is important for every person who wants to know himself, correct himself and his life, prepare for everything that the near future will bring to all humanity, and also help to understand the book about the end - “APOCALYPSE.”