2.1. GOD is one - ISLAM
The Most Concise Definition of God
"Say: He is Allah,
The One and Only.
"Allah, the Eternal, Absolute.
"He begets not, nor is He begotten.
And there is none like unto Him."
[Al-Qur’an 112:1-4]
"If there were, in the heavens
And the earth, other gods
Besides Allah, there would
Have been confusion in both!
But glory to Allah,
The Lord of the Throne:
(High is He) above
What they attribute to Him!"
[Al-Qur’an 21:22]
If there were more than one God, they would have taken away what they created. The Qur’an says:
"No son did Allah beget,
Nor is there any god
Along with Him: (if there were
Many gods), behold, each god
Would have taken away
What he had created,
And some would have
Lorded it over others!
Glory to Allah! (He is free)
From the (sort of) things
They attribute to Him!"
[Al-Qur’an 23:91]
2.2. GOD is one - CHRISTANITY
The following verse from the book of Deuteronomy contains an exhortation from Moses (pbuh):
"Shama Israelu Adonai Ila Hayno Adna Ikhad".
It is a Hebrew quotation which means:
"Hear, O Israel: The Lord our God is one Lord"
[The Bible, Deuteronomy 6:4]
2.3. GOD is one – HINDUISM
“Ekam Evadvitiyam”
“He is one only without a second.”
[Chandogya Upanishad (Chapter 6, Section 2, Verse 1)]
(The Principal Upanishad by S. Radhakrishnan pg. 447 & 448)
(Sacred Books of the East Volume 1, the Upanishads Part I Page 93)
“Nacasya kascij janita na cadhipah”
“Of Him there are neither parents nor Lord.”
(Shwetashvatara Upanishad 6:9)
(The Principal Upanishad by S. Radhakrishnan pg. 745)
(and in Sacred books of the East volume 15, the Upanishads Part II Page 263)
The oldest and most sacred amongst all the Vedas is the Rigveda.
Rigveda Book no. 1, Hymn No. 164, verse 46
It is mentioned in Rigveda Book no. 1, hymn No. 164 verse 46
“Ekam sat vipra bahudha vadanti”
“Sages (learned Priests) call one God by many names”.
(Rigveda 1:164:46)
Truth is one, God is one, sages call it by various names.
A similar message is given in Rigveda, Book 10, hymn 114, verse 5.
Rigveda Book 2 hymn 1
Rigveda gives no less than 33 different attributes to Almighty God. Several of these attributes are mentioned in Rigveda Book 2 hymn 1
Rigveda Book 8 hymn 1 verse 1
It is mentioned in Rigveda
“Ma Chidanyadvi Shansata”
“Do not worship anybody but Him, the Divine One, Praise Him alone”
(Rigveda 8:1:1)
(Rigveda Samhiti Vol. IX, pg. 1 & 2 by Swami Satyaprakash Sarasvati & Satyakam Vidhya Lankar)
Rigveda Book no. VI, Hymn 45, verse 16
It is mentioned in Rigveda
“Ya Eka Ittamushtuhi”
“Praise Him who is the matchless & alone”.
(Rigveda 6:45:16)
(Hymns of Rigveda by Ralph T. H. Griffith pg. 648)
The Brahma Sutra of Hindu Vedanta is:
‘Ekam Brahm, dvitiya naste neh na naste kinchan”
“Bhagwan ek hi hai dusara nahi hai, nahi hai, nahi hai, zara bhi nahi hai”.
“There is only one God, not the second, not at all, not at all, not in the least bit”.
2.4. GOD is one – JUDAISM
The following verse from the book of Deuteronomy contains an exhortation from Moses (pbuh):
"Shama Israelu Adonai Ila Hayno Adna Ikhad"
It is a Hebrew quotation which means:
"Hear, O Israel: The Lord our God is one Lord"
[The Bible, Deuteronomy 6:4]
The following verses are from the Book of Isaiah:
"I, even I, am the Lord; and beside me there is no saviour."
[The Bible, Isaiah 43:11]
"I am Lord, and there is none else There is no God besides me."
[The Bible, Isaiah 45 : 5]
"I am God, and there is none else; I am God, and there is none like me."
[The Bible, Isaiah 46:9]