In the Qur’ān, government-related vocabulary has been used more than 85 times, and mostly refers to ruling and judging. In addition to the mission of fostering political, doctrinal and moral principles, prophets and divine religions such as Joseph, Moses, David, Solomon and the Prophet Mohammad (pbuh) ruled, and in reality, their rule was part of the mission. In general, the Qur’ān does not mention Jesus Christ's rule, but the principle of non-separation of the prophets and the necessity of faith in all the divine prophets is stated in this context in verse 285 of Surah Baqarah: "They believed in God, the scriptures, and the prophets of God", and said: "We have no distinction between the prophets of God." Analyzing the process of the advent of Christianity and its development and adoption in the ancient Roman and Greek empires, it can be said that the people adopted Christianity as a religious belief from the beginning to the beginning of the second millennium, and that the government regarded it as the official religion. From 1054, many internal conflicts broke out, creating large gaps and sects of protest and reformist were registered. And historical experience shows that government-church relations in Europe are more dependent on the extent and manner of government participation, and the government has taken advantage of religious rules and components in the best of circumstances, particularly in its judicial and political structure. The main aim of this essay is to draw attention to a central question: to what degree is there a commonality and distinction between Islam and Christianity in terms of policy and political sovereignty?