Islam in Quran-1

Islam is a natural religion. Everyone is born Muslim by Instinct:

30:30 So set thy face to the service of religion with 'single-minded devotion'. And follow THE NATURE made by ALLAH, THE NATURE according to which HE has fashioned mankind. There is no altering the creation of ALLAH. That is the RIGHT RELIGION, but most men know not.

Islam is an ANCIENT religion:

22:78And strive in His cause as ye ought to strive, (with sincerity and under discipline). He has chosen you, and has imposed no difficulties on you in religion; it is the cult of your father Abraham. It is He Who has named you MUSLIM, both before and in this (Revelation); that the Apostle may be a witness for you, and ye be witnesses for mankind! So establish regular Prayer, give regular Charity, and hold fast to God! He is your Protector - the Best to protect and the Best to help.

42:13 The SAME religion has He established for you as that which He enjoined on Noah - the which We have sent by inspiration to thee - and that which We enjoined on Abraham, Moses, and Jesus: Namely, that ye should remain steadfast in religion, and make no divisions therein: to those who worship other things than God, hard is the (way) to which thou callest them. God chooses to Himself those whom He pleases, and guides to Himself those who turn (to Him).

35:32 We passed the scripture from generation to generation, and we allowed whomever we chose from among our servants to receive it. Subsequently, some of them wronged their souls, others upheld it only part of the time, while others were eager to work righteousness in accordance with GOD's will; this is the greatest triumph.

Example of what prophet Joseph (a.s.) said this to people in prison

12:38 "And I followed instead the religion of my ancestors, Abraham, Isaac, and Jacob. We never set up any idols beside GOD. Such is the blessing from GOD upon us and upon the people, but most people are unappreciative.

12:39 "O my prison mates, are several gods better, or GOD alone, the One, the Supreme?

12:40 "You do not worship beside Him except innovations that you have made up, you and your parents. GOD has never authorized such idols. All ruling belongs to GOD, and He has ruled that you shall not worship except Him. This is the perfect religion, but most people do not know.

Essence of Islam is believing and following ONE GOD:

2:177] RIGHTEOUSNESS is not turning your faces towards the east or the west. Righteous are those who believe in GOD, the Last Day, the angels, the scripture, and the prophets; and they give the money, cheerfully, to the relatives, the orphans, the needy, the traveling alien, the beggars, and to free the slaves; and they observe the Contact Prayers (Salat) and give the obligatory charity (Zakat); and they keep their word whenever they make a promise; and they steadfastly persevere in the face of persecution, hardship, and war. These are the truthful; these are the righteous.

Islam is Inclusive and Tolerant:

3:65 Ye People of the Book! Why dispute ye about Abraham, when the Law and the Gospel Were not revealed Till after him? Have ye no understanding? 3:66 Ah! Ye are those who fell to disputing (Even) in matters of which ye had some knowledge! but why dispute ye in matters of which ye have no knowledge? It is God Who knows, and ye who know not! 3:67 Abraham was not a Jew nor yet a Christian; but he was true in Faith, and bowed his will to God's (Which is Islam), and he joined not gods with God. 3:68 Without doubt, among men, the nearest of kin to Abraham, are those who follow him, as are also this Apostle and those who believe: And God is the Protector of those who have faith.

(this Apostle=Muhammad (pbuh)

22:17 Those who believe (in the Qur'an), those who follow the Jewish (scriptures), and the Sabians, Christians, Magians, and Polytheists,- God will judge between them on the Day of Judgment: for God is witness of all things.

Compared to...

5:69 Those who believe (in the Qur'an), those who follow the Jewish (scriptures), and the Sabians and the Christians,- any who believe in God and the Last Day, and work righteousness,- on them shall be no fear, nor shall they grieve.

[22:40] They were evicted from their homes unjustly, for no reason other than saying, "Our Lord is GOD." If it were not for GOD's supporting of some people against others, monasteries, churches, synagogues, and masjids - where the name of GOD is commemorated frequently - would have been destroyed. Absolutely, GOD supports those who support Him. GOD is Powerful, Almighty.

Islam is IMPORTANT:

2:130 And who forsakes the religion of Ibrahim but he who makes himself a fool, and most certainly We chose him in this world, and in the hereafter he is most surely among the righteous.

2:131 When his Lord said to him, Be a MUSLIM, he said: I SUBMIT myself to the Lord of the worlds.

6:161 Say: "Verily, my Lord hath guided me to a way that is straight,- a religion of right,- the path (trod) by Abraham the true in Faith, and he (certainly) joined not gods with God."

[3:102] O you who believe! be careful of (your duty to) Allah with the care which is due to Him, and do not die unless you are Muslims.

3:85 If anyone desires a religion other than Islam (submission to God), never will it be accepted of him; and in the Hereafter He will be in the ranks of those who have lost (All spiritual good).

(www.quranbrowser.org)