What are the motives and truths that call for embracing Islam and prove its authenticity in comparison to Christianity, and how can one distinguish the true religion from the false, and why do religious differences exist among people, and what is the wisdom behind God's creation of angels, devils, Paradise, and Hell, and what is the fate of followers of other religions, such as priests, and are Muslims exclusively destined for Paradise and Christians for Hell, and what are God's attributes given the existence of injustice and harm among people?

The questioner is searching for the truth, and she should remember the vast mercy of Allah and that she will be guided to the truth by her sincerity. The religion of Allah is one; its foundation is the knowledge and oneness of Allah, and that is Islam. Jews and Christians attribute a son to Allah, which is a grave polytheism, and they have taken their rabbis and monks as lords. Islam came to guide them and calls to a common word: "that we worship none but Allah, and that we associate no partners with Him." Muslims believe in all the prophets, while Jews and Christians deny some of them. The greatest differences between Islam and other religions lie in monotheism, for Allah is One, the Unique, He neither begets nor is begotten, nor is there to Him any equivalent. To know the correct religion, one must compare the Qur'an with the Bible. The latter contains contradictions and distortions, while the Qur'an challenged the jinn and mankind to produce anything like it. The Qur'an contains unseen and scientific miracles. There are glad tidings of Muhammad, peace be upon him, in the Torah and the Gospel. Life is a trial and test for people, and injustice is part of the tribulation; the oppressors will be held accountable in the Hereafter.