In this article, the 5th letter attributed to Saint Pachomius is published in German for the first time. It is an invitation to the Pachomians to gather for one of their two annual assemblies to celebrate together the Christian passover. The letter is extant only in Latin, but Jerome claims to have translated the Pachomian writings from a Greek source. However, the peculiar form of some of the Bible quotations give prove that the Greek text in turn must have come from a Coptic original. This is essential external evidence for the genuity of the letter, the most important internal evidence being the inseparable unity of love for one's brethren and salvation. Although written in what could be called an aspectivic manner, the letter is carfully structured. The second half of this article comments on the content of this document and scetches its flow of thoughts.