"Memoranda Sacra" is an outstanding book written by the famous British biblical scholar and scholar of early Christianity, James Rendell Harris. In this work, the author examines evidence of Christian beliefs and religious practices in the early Christian East. Through careful analysis of ancient scriptures and archaeological finds, Harris reveals important details about the development of Christianity during the first centuries of our era. In "Memoranda Sacra" readers will find profound thoughts that prompt a renewed historical knowledge and understanding of the religious changes that took place in early Christianity. The book opens new perspectives on the emergence of Christian dogmatics and rites, reveals the connections between the early biblical texts and the culture of the ancient East. "Memoranda Sacra" is an important literary heritage for anyone interested in the history of religion and who wants to gain a deeper understanding of the formation and development of early Christianity.