In the second half of the first century. in some areas of the Roman Empire there are still small associations of Christians. The Christians received all who came to them; they made no secret of their belonging to the new religion. When one of them got into trouble, they came to the rescue. But with all the “openness” of their communities Christians are not made public worship, did not participate in the exploded festivities. Their religious meetings were for them a sacrament that could not be administered in front of the uninitiated. They were internally separated from the outside world, and this was the secret of their teachings, which worried the authorities and caused condemnation from many educated people of the time. The charge of secrecy was therefore one of the most common charges that were thrown to the Christians as their adversaries.

Christianity from the very beginning recognized as Holy Scripture the Hebrew Bible (Tanakh), usually in its Greek translation (Septuagint). At the beginning of the first century, Christianity was seen as a Jewish sect, and later as a new religion that developed from Judaism. At an early stage, the relationship between the Jews and the first Christians began to deteriorate. Often it was the Jews who provoked the pagan authorities of Rome to persecute Christians. In Judea, the temple Sadducee priesthood and king Herod Agrippa participated in the persecution.

It is historically known that Christianity spread in Eastern Europe in the ninth century. In Russia, the new ideology came not from any single center, but through different channels. Archaeologists testify that certain groups of Russ were baptized already in the IX century, and not in the X century, when Prince Vladimir I Svyatoslavovich baptized the Kievans in the river. Before Kiev was baptized Chersonese-Greek colony in the Crimea, with which the Slavs maintained close ties.