And do not argue with the People of the Scripture except in a way that is best, except for those who commit injustice among them, and say, "We believe in that which has been revealed to us and revealed to you. And our God and your God is one; and we are Muslims [in submission] to Him."
O believers! Do not discuss and debate with the Jews and Christians to whom the divine books were revealed, except in the best of manners and most exemplary of ways: inviting them by exhortation and establishing clear proofs. As for those of them who oppress by showing stubbornness and arrogance, fight them until they submit, or pay the Jizyah with their own hands while subdued. And say to the Jews and the Christians: “I have believed in whatever Allah has revealed to us in the Qur’ān, and in the Torah and Gospel that was revealed to you. Our Lord is one and so is yours, He has no partner in His lordship, worship or perfection, and we submit and humble ourselves to Him alone.”