The Divine Will of the Perfect God
So Adam sought forgiveness for His sin, and God accepted it from Him. Another crucial point which must be mentioned is that God created humans with a free will, and He knew that humanity would sin. For this reason, no human is expected to be perfect, but rather, God knows that they will sin. What is expected from humans is that they repent from their sin. The Prophet, may the mercy and blessings of God be upon him, said:
“All children of Adam repetitively make mistakes, but the best of those who make mistakes are those who repent.” (Ibn Maajah)
The Prophet also said:
“By Him in Whose Hand is My soul (i.e. God), if you did not commit sins, God would do away with you and come with a race which committed sins. They would seek forgiveness from God and He would forgive them. (Saheeh Muslim #4936)
So here we see that it was in the Great and Wise plan of God that Adam sin and that God forgive him for that sin, and to say that Adam went against the Universal Will of God by sinning is a blasphemy against the All Encompassing Knowledge, Power, and Will of God. Christianity goes so far as to say that God even repented from the creation of humans! May God be free from all defects people attribute to Him. In Genesis 6:6, it says to quote:
“And it repented the Lord that he had made man on the earth, and it grieved him at his heart”
To agree to this would mean that Adam did something which was out of the Will, Power, and Knowledge of God, and that God regretted His creation of humans. God is All-Perfect and so are His deeds, and there is no defect or shortcoming in them; He does nothing except with total and complete perfection and wisdom. Islam in no way agrees to this belief and, as we mentioned, all of what occurred in the story of Adam was within the perfect plan of God. The Prophet said:
“Indeed God put everything into its proper measure fifty thousand years before the creation of the heavens and the earths.” (Al-Tirmidhi)
God mentions in the Quran what took place between the angels when He announced the creation of humans, and from this we see that it was known to God and part of His Great and Divine Plan that humans would sin. God says:
“And (remember) when your Lord said to the angels: ‘Verily, I am going to place (mankind) generations after generations on earth.’ They said: ‘Will You place therein those who will make mischief therein and shed blood, - while we glorify You with praises and thanks and sanctify You.’ He (God) said: ‘Indeed I know that which you do not know.’” (Quran 2:30)
It is also clear from these verses that God did not create humans as immortal, and that death was prescribed for them from the beginning of their creation. As for the consequences of the sin of Adam, which was his extradition from the Garden, this was felt by those to come after him and this is only natural. If one was to become drunk and have a car accident, and some of the passengers die, the sin of driver effects the passengers in their death, but that does not mean that the passengers are to be held to account for the sin of the driver.
Another question which must be dealt with is the fate of those who came before the claim that God became incarnate and sacrificed himself for the sins of humanity, as well as the fate of those who were not baptized, as baptism is the rite which all Christians must perform in order to be cleansed of Original Sin. In Christian belief, all humans previous to the incarnation of God, including the Prophets and infants usually regarded as sinless, are not free from the Original Sin of Adam, and therefore cannot enter the Kingdom of Heaven, As Augustine said: “Do not believe, nor say, nor teach, that infants who die before baptism can obtain the remission of original sin.” Only until recently, non-baptized infants were not buried in consecrated ground because they were believed to have died in original sin.
Also, we know that the verse in the Apostles’ Creed, “… and (Jesus) descended into Hell”, is said to mean that Jesus descended to Hell to free the righteous souls who were there due to the sin of Adam. This leads us to believe that all those before the coming of Jesus are in Hell, even if they were from the righteous. Paul mentioned this himself in Galatians:
“… a man is not justified by the works of the law ... for by the works of the law shall no flesh be justified.” (Galatians 2:16)
Here it is clear that adherence to the commandments of God is not enough for salvation, even for those before Jesus. This also holds true to all those who have not received the message of Christianity. We must ask; why did not the Prophets before Jesus call to this notion of original sin? Did they lie when they said that it was enough to Worship One God and obey His commandments to achieve Paradise? Why did not God come and free humanity from sin at the time of Adam so that the righteous and others would not be in Hell due to his sin? Why are infants, humanity before Jesus, and others who have not heard about Christianity, held accountable for a sin they never committed, nor have knowledge about how to remit themselves from it? The truth of the matter is that the notion of “Original Sin”, as many others, was one introduced by Paul and later expounded on by Christian scholars and councils.
“The Old Testament says nothing about the transmission of hereditary sin to the entire human race… the main scriptural affirmation of the doctrine is found in the writings of St. Paul…”
This concept though, was expounded by Augustine of Hippo, one of the most prominent Christian scholars in History. The basis of this concept is that “the deliberate sin of the first man (Adam) is the cause of original sin.” The Second Council of Orange (529 C.E.) declared, “One man has transmitted to the whole human race not only the death of the body, which is the punishment of sin, but even sin itself, which is the death of the soul.”
The concept of original sin is one which has no basis in previous scriptures regarded as divine by Christianity. None of the Prophets before Jesus were known to have preached this concept, nor were any other beliefs or rituals based upon them. Rather, salvation from Hell was achieved through the belief in One God and obedience to His commandments which was preached by all prophets, including the Prophet of Islam, Muhammad, may God praise them.
In Islam, the key to salvation is the belief in and worship of the One True, Unique and Perfect God and obedience to His commandments, the same message brought by all Prophets. Islam preaches that a person must work righteousness and avoid sin to attain Paradise, and that if one sins, that they seek repentance for it from their heart. Through this and the Mercy and Grace of God, they will enter Paradise. Islam does not deem that all those before the advent of Muhammad are doomed to Hell, but rather that each nation was sent a prophet by the same One God, and it was upon them to follow His commandments. Those who have not heard of the message are not held liable to follow Islam, and God will deal with them with His Perfect Justice on the Day of Judgment. Infants and children of both Muslims and disbelievers alike are in enjoyment in Paradise upon death. Due to the infinite Justice of God:
“No one laden with burdens can bear another’s burden. And We never punish (people) until We have sent (to them) a Messenger (to give warning).” (Quran 17:15)
 King James Version.
 De Anima (III).
 The creed based on the Catechism of the Council of Trent.
 Merriam-Webster’s Encyclopedia of World Religions. P.830. 1999, Merriam Webster, inc.
 De Nuptiis et Concupiscentiâ, II, xxvi, 43
 Enchiridion Symbolorum, Heinrich Joseph Dominicus Denzinger. n. 175 (145)