In any case, Christianity in Nubia was linked to Egypt. Abu Salih al-Armani indicates that when the Armenian kings raided Egypt, some of these raids, but not all, were aimed at avenging the Christians in Egypt and the treatment they were subjected to, especially during the era of the Fatimid ruler al-Hakim bi-Amr Allah, during which it is said that a type of persecution befell them, or harm, as indicated by Christian sources such as Abu Salih al-Armani. Similarly, Abu Salih himself indicates that the son of the King of Nubia, when he came to Egypt on his way from Baghdad, after the journey his father had commissioned him to undertake to meet the Abbasid Caliph regarding the tribute, to make him pay every three years instead of every year, contacted the Egyptian priests and ordered the governor of Egypt to strike the bell for him, given his high status, so that his companions would gather to pray with him and to perform the Mass as he used to do in his country.

Regarding the Kingdom of Makuria, "Ahmad ibn Salim al-Aswani" says that the province of Marisa has a governor appointed by the great Nubian, known as the Lord of the Mountain, and he is one of the most important. And because they are close to the land of Islam, the province of the mountain was their first line of defense, and Islamic Egypt paid attention to it.

The king was chosen from among the members of the royal family and did not ascend to the throne except after a period of seclusion in the monastery for a specific period, during which he gained purity and sanctity. Hence, the state's care for Christianity, as Christians, under this royal care, were able to practice their worship freely. Indeed, the activity of preaching the new religion increased, and religious institutions were established, headed by churchmen. It appears that the Nubian Church initially used the Greek language in performing religious rituals, then the Coptic language began to spread and be used in churches, and then the religious rituals were later translated into the Nubian language.

As for the impact of the Nubian Church on the history of Nubia and its relations with Egypt, it is due to the relationship between the Egyptian and Nubian Churches. The bishops of Nubia were sent to it from Egypt. And often, the internal circumstances