That statement makes no sense to me.
Person A comes to you and says his god is real.
Person B comes to you and says her god is different from Person A's god, and that only her god is real.
Person C comes to you and says that he actually understands Person B's god better than she does, so his description of that god is more accurate.
Person D comes to you and says that the other three were all wrong, and that only her god is real.
Person E comes to you and says that he believes in a whole bunch of gods, including Person B and Person C's gods, but not person A or person D's gods.
Person F comes to you and says that some of the others are partially correct, but they only have a limited understanding. He knows god's characteristics better than they do.
Which one do you put faith in?
You have missed something along the way. The Jews, Christians and Muslims all worship the same God.
Christians believe Jesus is God. Jews don't believe Jesus is God. Muslims believe that the Qu'ran is a literal word-for-word recitation from God. Christians don't believe that.
The religions sprang from the same general area over various time periods, and built off of the previous religions. I see some Christians here who consider the Islamic god to be their god as well, while I see other Christians who claim that the Islamic god is certainly not their god. I don't personally care, to be honest with you, as it doesn't affect the point I was making.
Given a list of competing and sometimes exclusive claims about which god(s) exist, a sorting mechanism is required. If "faith" is used, what do you base this faith on?
-Lyn