Allah (SWT) says:

“And We did not

send any messenger

before you

(O Muhammad)

but We revealed to him (saying):

none has the right to be worshipped but

I (La ilaha illah)

so worship Me

(alone

and none else).”

(Quran:21:25)

Allah (SWT) says:

“That is because Allah, He is the Truth,

and that which they invoke besides Him is falsehood

(al-batil),

and that Allah,

He is the Most High,

the Most Great

Quran:31:30

This wordAllah is a name for God, which is used by Arabic speakers, both Arab Muslims and Arab Christians. This word cannot be used to designate anything other than the one true God. The Arabic word Allah occurs in the Quran about 2700 times. In Aramaic, a language related closely to Arabic and the language that Jesus habitually spoke,

Allah! There is no deity save Him, the Alive, the Eternal. Neither slumber nor sleep overtaketh Him. Unto Him belongeth whatsoever is in the heavens and whatsoever is in the earth. Who is he that intercedeth with Him save by His leave? He knoweth that which is in front of them and that which is behind them, while they encompass nothing of His knowledge save what He will. His throne includeth the heavens and the earth, and He is never weary of preserving them. He is the Sublime, the Tremendous.

Lo! Abraham was a nation obedient to Allah, by nature upright, and he was not of the idolaters;

Thankful for His bounties; He chose him and He guided him unto a straight path.

And We gave him good in the world, and in the Hereafter he is among the righteous.

And afterward We inspired thee (Muhammad, saying): Follow the religion of Abraham, as one by nature upright. He was not of the idolaters.

Call unto the way of thy Lord with wisdom and fair exhortation, and reason with them in the better way. Lo! thy Lord is Best Aware of him who strayeth from His way, and He is Best Aware of those who go aright.

Quran Translation 16:      120,121,125

:36 AND WORSHIP Allah  ( God alone), and do not 

ascribe divinity, in any way, to aught beside Him.  

And do good unto your parents, and near of kin, 

and unto orphans, and the needy, and the neighbour

 from among your own people, and the  neighbour 

who is a stranger,  and the friend by your side, 

and the wayfarer, and those whom you rightfully possess. 

 Verily, Allah does not love any of those who, 

full of self-conceit, act in a boastful manner;