Coelacanth, Is the language also belongs to particular religion??? I already clarified you that What is Islam and How one will be muslim. I agree that Moosa (AS) was sent to the Israelites, not jews. Judaism is established after Moosa(AS) by his followers and they altered Moosa's(AS) teaching. The same way, Isa(AS) was the Prophet sent to Jews, not christians to correct them. His followers altered his teachings and established Christianity. Prophet Mohammed (SAW) was sent to the people to get them back to Islam, which is originally sent through the first Prophet Adam(AS).