WHY WAS THE LAST PROPHET NEEDED?Arabs: Islam's major sin is denying Allah. There are two common ways to deny Allah: by substituting idols for Allah or by being self-sufficient and ignoring Allah. Arabs were guilty of idol worship and self-sufficiency. Pre-Islamic Arab monotheists, called Hanifs, were descendants of Abraham and his son Ishmael. With centuries, the Arabs, like others, followed the downward slope from monotheism to idolatry. Idol worship...