The reference book contains more than 2500 words from the monuments of Old Slavonic writing, which makes it possible to read and translate educational texts and perform tasks in phonetics, morphology, vocabulary, syntax of the Old Slavonic language. The appendices contain a short list of paintings by Western European and Russian artists on gospel subjects, as well as maps of historical areas where events took place in the era of Jesus Christ. The reference book is intended for philologists studying the Old Slavonic language course.