When death was near Jacob, what faith had he asked his sons they would follow after him? Whatsoever their answer may have been it was certainly not Judaism or Christianity for neither Moses nor Jesus had been born. So followers of which faith would claim which of the prophets and their messages as their own? There are numerous other similar kind of inconsistencies which even the most learned of religious scholars would not be able to address satisfactorily. But setting them aside, it is more relevant to know that the need to lay claim to particular prophets as their own messengers and guides was neither required nor tenable. Because all of the prophets brought the same message for all mankind and logically that should have established the one and the same religion intrinsically, for it just cannot be expected from God to tell one thing to His chosen ones and something different to the others. But regrettably, men deviated from the original messages of each of the prophets and incorporated their own selfish inclinations that accommodated their old customs, ideas and interests and those super-imposed amalgamations created the differences and subsequently the resentments which have been increasing ever since. Hillel, a scholar of the Mishnah school of Jewish thought had said, “Do not do unto others what you don’t want others to do unto you.”
Years later, as per the Christians, Jesus had said, “Do unto others what you want others to do unto you.”
And the Quran says, “Those who are merciful will be shown mercy by the Most Merciful. Be merciful to those on the earth and the One above the heavens will have mercy upon you.”
There could be philosophical difference in the above statements, but the concern for the others contained in them is commonly shared. Would not the world be a better place today, if these words, in principle, had been universally adopted?