The Islamic concept of God is crystal clear, and it is purely of divine source - not human conjecture. Man, with all his senses, sees God's creation around him - both animate and inanimate objects. These include the heavens and the earth, and all between them - mankind, the sun, the moon, the stars, the rain, the mountains, animals, vegetables and all kinds of fruits, and many more. All these have the same patterns of creation, and are, therefore, clear signs that there is One and only True God - Allah the Almighty and the Supreme Creator. He has asked us to meditate on those signs, so we would be able to realize that every creation has a definite purpose - not accidental nor a mere idle sport.
Allah says: � Not for (idle sport) did We create the heavens and the earth and all that is between!�.
Elsewhere in the Qur'an, Allah the Almighty likewise says:� We created not the heavens, the earth, and all between them, but for just ends.... For verily it is thy Lord Who is the Master- Creator, knowing all things�.
� Your God is one God: as to those who believe not in the Hereafter, their hearts refuse to know, and they are arrogant�.
In order to satisfy further those with inquisitive minds, they should ponder over the following explicit accounts of the Oneness of God, as stated in the Holy Qur'an:� And your God is One God: there is no god but He, Most Gracious, Most Merciful�.
� God! There is no god but He, - the Living, the Self-subsisting Eternal. No slumber can seize Him nor sleep. His are all things in the heavens and on earth. "Who is there can intercede in His presence except as He permitted? He knows what (appeared to His creatures as) Before or After or Behind them. Nor shall they compass ought of His knowledge except as He willed. His Throne doth extend over the heavens and on earth, and He felt no fatigue in guarding and preserving them for He is the Most High, the Supreme (in glory)�.
� Verily, verily, your God is One!�.
� Say. He is God the One and Only; God, the Eternal, Absolute; He begets not, nor is He begotten; and there is none like unto Him�.
The foregoing verses are just some of the numerous Qur'anic injunctions, which clearly manifest the Oneness of God. But to rectify man's baseless conjectures, Allah the Almighty Himself explicitly brands those who adhere to Trinity and other strange polytheistic beliefs as blasphemers, as manifested in the following verse:� They do blaspheme who say: God is one of three in a Trinity: for there is no god except One God. If they desist not from their word (of blasphemy), verily a grievous penalty will befall the blasphemers among them�.
 See the Holy Qur'an, Nahl, 16:1-21.
 Qur'an, Anbiyaa, 21:16.
 Qur'an, Al-Hijr, 15:85-86.
 Qur'an, Nahl, 16:22.
 Qur'an, Baqara, 2:163.
 Qur'an, Baqara, 2:255.
 Qur'an, Saffat, 37:4.
 Qur'an, Ikhlas, 112:1-4.
 Qur'an, Maida, 5:74.