2. Man's Inability to Obey

The problem of sin prevents man from enjoying true islam.

After God created man, he subjected him to a test of fidelity and obedience —a test of islam. He warned Adam and Eve not to eat of the fruit of the tree of the knowledge of good and evil, or they would die. Satan came and tempted them, saying they would become as God if they ate, and wouldn't die. Tragically they believed Satan rather than God, and our first parents fell from created perfection into corruption (Genesis [the first book of Moses in the Taurat] 3).

And they, as our first parents, polluted the whole human race. The first human being born, Cain, was a murderer (Genesis [the first book of Moses in the Taurat] 4:1-8). By the sixth chapter of Genesis, God was ready to destroy the whole human race. "The Lord saw how great man's wickedness on the earth had become, and that every inclination of the thoughts of his heart was only evil all the time" (Genesis [the first book of Moses in the Taurat] 6:5). It is because of the fall of man and its effects that the Zabur of David says:

There is no one righteous, not even one; there is no one who understands, no one who seeks God. All have turned away, they have together become worthless; there is no one who does good, not even one (Psalms 14:1-3, 53:1-3).

This is why simply trying to submit to God without having our sin effectively dealt with is futile.

But God has dealt with man according to his grace, and not according to our sin. And in due time, he provided the ultimate solution to the problem of sin and the deeply ingrained rebellion against God common to all men: a Savior. While there were hundreds of prophets, there is only one Messiah or Savior, to which the prophets bear witness.