God’s Original Law on which He originated mankind. (30:30)

Do they seek other than God’s Religion, while to Him has surrendered whoso is in the heavens and earth, willingly or unwillingly, and to Him they shall be returned? (3:83)

Hast thou not seen that to God prostrates whoso is in the heavens and whoso is on the earth, and the sun, the moon, the stars, the mountains, the trees, the animals and many of mankind, and many merit the punishment.(22:18)

The word Islam means submission or surrender and implies obedience to God. The word Deen (in English, Religion) means way of life or the law governing the pattern of life. The Religion of God is, therefore, the law on which He fashioned the things, and Islam is the state of surrender to that law. Different laws govern different creatures, but the basic, common law, the law of laws, for all of them is Islam i.e. the act of submission to their specific laws. Each creation is bound to its law (or Religion) and is, therefore, on Islam, except mankind that disobeys so often.

The Religion of man is defined in the Quran as the original unchanging law on which God based the creation of mankind.

Set thy face straight to the Religion, the original law of God, on which He originated mankind; in God’s creation there is no change; that is the standing Religion, but most men do not know. (30:30)

The Religion of God is, thus, the basic, eternal law, inherent in the very structure of man on which his life and behaviour were fashioned, That law is the very nature of man that gives him right direction. Islam means following that law every moment of life. Peace, success and salvation are the fruits of obedience to that law. Its disregard means going astray from the laid down path resulting in troubles and disaster. Man has no choice but to follow that Law, the law of God, being the only way established by Him. No other religion could be acceptable to God. (Even the Atheists act on it and get the fruits of life).

He who seeks a religion other than Submission to God (Islam), that shall not be accepted of him, and he shall be a loser in the Hereafter. (3:85)

It was this basic "Law of Islam" and the unchanging original law of life that all the Messengers of God taught through ages. Islam is Not Mohammadenism. Muhammad (may God bless him) never claimed any philosophy of life evolved by him. He said that he was only one among many Messengers of God, all of whom were ordained to submit themselves to, and bring the world on, the natural, eternal, unchanging and Only Religion of God.

Muhammad is naught but a Messenger; Messengers have passed away before him; so if he should die or be slain, will you turn about on your heels ? If any turns about on his heels, he will not harm God in the least, and God will recompense the grateful. (3:144)

When his Lord said to him (Abraham), ‘submit thyself’, he said, ‘ I submit myself to the Lord of the World’. And with that Abraham charged his sons, and so did jacob, ‘my sons, God has chosen for you the Religion (of Submission), so die not but in Submission’. (2:131-132)

The Religion with God is Submission (Islam). Those who were given the Book differed not but after the knowledge had come to them, being insolent to one another. And if any disbelieves in the Signs of God, then God is swift at the reckoning. (3:19)

Say, ‘ I have been commanded that I should serve God, being sincere to Him in the Religion, and I have been commanded that I should be the first of the Obedient.’ Say, ‘I fear, if I rebel against my Lord, the punishment of a Great Day’. (39:11-13)

O Believers, enter Submission totally, and follow not the steps of the Devil; he is a clear foe to you. But if you slip after the Clear Signs have come to you, then know that God is Mighty, Wise. (2:208-209)