To You Your Religion and To Me Mine (Qur'an 109:1-6)

Say: O disbelievers!
I worship not that which ye worship;
Nor worship ye that which I worship.
And I shall not worship that which ye worship.
Nor will ye worship that which I worship.
Unto you your religion, and unto me my religion.

Say: O unbelievers!
I do not serve that which you serve,
Nor do you serve Him Whom I serve:
Nor am I going to serve that which you serve,
Nor are you going to serve Him Whom I serve:
You shall have your religion and I shall have my religion.

Say: O ye that reject Faith!
I worship not that which ye worship,
Nor will ye worship that which I worship.
And I will not worship that which ye have been wont to worship,
Nor will ye worship that which I worship.
To you be your Way, and to me mine.

There was a time in Makkah when although a storm of opposition had arisen in the pagan society of Quraish against the message of Islam preached by the Holy Prophet (upon whom be peace), yet the Quraish chiefs hall not yet lost hope that they would reach some sort of a compromise with him. Therefore, from time to time they would visit him with different proposals of compromise so that he accepted one of them and the dispute between them was brought to an end.
. . .
If the Surah is read with this background in mind, one finds that it was not revealed to preach religious tolerance as some people of today seem to think, but it was revealed in order to exonerate the Muslims from the disbelievers religion, their rites of worship, and their gods, and to express their total disgust and unconcern with them and to tell them that Islam and kufr (unbelief) had nothing in common and there was no possibility of their being combined and mixed into one entity. Although it was addressed in the beginning to the disbelieving Quraish in response to their proposals of compromise, yet it is not confined to them only, but having made it a part of the Quran, Allah gave the Muslims the eternal teaching that they should exonerate themselves by word and deed from the creed of kufr wherever and in whatever form it be, and should declare without any reservation that they cannot make any compromise with the disbelievers in the matter of Faith. That is why this Surah continued to be recited when the people to whom it was addressed as a rejoinder, had died and been forgotten, and those Muslims also continued to recite it who were disbelievers at the time it was revealed, and the Muslims still recite it centuries after they have passed away, for expression of disgust with and dissociation from kufr and its rites is a perpetual demand of Faith.