"Biblical freethinkers." This very phrase may cause bewilderment: freethinking in the holy book of the Jewish and Christian religions in such ancient times? And yet this is true. The book will show the reader that doubts about the omnipotence of God, and indeed about his very existence, visited people in ancient times, when, it would seem, the religious worldview reigned supreme. It is the ideas of skepticism that underlie two biblical books - Job and Ecclesiastes, which are discussed and dedicated his new work to Candidate of Historical Sciences M.I. Rizhsky, known to a wide range of readers from the book “Biblical Prophets and Biblical Prophecies. Designed for the general reader.