Talking to Jews and Christians

Before actually getting down to our response, let us first establish the ground rules. All Bibles in existence today tell us that Christians are taught by Jesus (pbuh) himself:

"And Jesus answered him, The first of all the commandments is, Hear, O Israel; The Lord our God is one Lord: And thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind, and with all thy strength: this is the first commandment."