"There is no god but Allah" All praise is due to Allah alone and may peace and blessings be upon the Noblest of the messengers, our Prophet
Muhammad, his family, his Companions, Tabi`un (Followers, the generation after the Companions of the Prophet)
and those who followed them in the best manner until the Day of Resurrection.
I have read the article written by our brother in Islam, the eminent Shaykh `Umar ibn Ahmad Al-Millibary on the
meaning of 'La ilaha illa Allah'. I read the explanation of the shaykh thoroughly on the three points of view regarding
its meaning. The definitions are as follows:
First, it means that there is no deity truly worthy of worship except Allah.
Second, that there is no deity truly worthy of obedience except Allah.
Third, that there is no god but Allah.
The correct definition, as he stated, is the first which is clarified in the Book of Allah (may He be Praised) many
times. For instance, Allah (may He be Praised) states, You (Alone) we worship, and You (Alone) we ask for help
(for each and everything). and, And your Lord has decreed that you worship none but Him. He (may He be
Praised) also states, And I (Allâh) created not the jinn and mankind except that they should worship Me (Alone). 
and, That is because Allâh — He is the Truth (the only True God of all that exists, Who has no partners or rivals
with Him), and what they (the polytheists) invoke besides Him, it is Bâtil (falsehood). 
There are many Ayahs (Qur'anic verses) to this effect. Moreover, this is the meaning that the polytheists understood
from 'La ilaha illa Allah', when the Prophet (peace be upon him) called them to it, saying: O my people, say 'La
ilaha illa Allah', to succeed. 
They denied it and haughtily rejected to accept him because they understood that it contradicts their forefathers'
worship of idols, trees and stones and their deification, as Allah (may He be Glorified and Exalted) mentions in Surah
(Qur'anic chapter) Sad, And they (Arab pagans) wonder that a warner (Prophet Muhammad peace be upon him)
has come to them from among themselves. And the disbelievers say: “This (Prophet Muhammad peace be upon
him) is a sorcerer, a liar. Has he made the âlihah (gods) (all) into One Ilâh (God — Allâh). Verily, this is a curious
thing! 
In Surah Al-Saffat, Allah (may He be Praised) states concerning the polytheists, Truly, when it was said to them: Lâ
ilâha illallâh “(none has the right to be worshipped but Allâh),” they puffed themselves up with pride (i.e. denied it).
 And (they) said: “Are we going to abandon our âlihah (gods) for the sake of a mad poet?” This indicates that the
polytheists understood that the meaning of 'La ilaha illa Allah' superseded their deities and necessitated dedicating
their acts of worship to Allah Alone. Thus, when one of them embraced Islam, he gave up Shirk (associating others
with Allah in His Divinity or worship) and dedicated acts of worship to Allah Alone. Had 'La ilaha illa Allah' meant
only that there is no god but Allah, or that there is none worthy of obedience but Allah, they would have never
rejected it. That is because they already knew that Allah is their Lord and Creator Who must be obeyed in the orders
they believed to come from Him (may He be Praised). Rather, they believed that worship of idols, prophets, angels,
righteous people, trees and the like were their intercessors with Allah and brought them closer to Him. Allah (may
He be Praised) says, And they worship besides Allâh things that harm them not, nor profit them, and they say:
“These are our intercessors with Allâh.” 
Allah (may He be Praised) refuted this and replied to them, stating, And they worship besides Allâh things that
harm them not, nor profit them, and they say: “These are our intercessors with Allâh.” Say: “Do you inform Allâh of
that which He knows not in the heavens and on the earth?” Glorified and Exalted is He above all that which they
associate as partners (with Him)! He (may He be Glorified and Exalted) also states: The revelation of this Book
(the Qur’ân) is from Allâh, the All-Mighty, the All-Wise. Verily, We have sent down the Book to you (O Muhammad
peace be upon him) in truth: So worship Allâh (Alone) by doing religious deeds sincerely for Allâh’s sake only. 
Surely the religion (i.e. the worship and the obedience) is for Allâh only. And those who take Auliyâ’ (protectors,
helpers, lords, gods) besides Him (say): “We worship them only that they may bring us near to Allâh.” 
The pagans admitted that they worshiped others only to bring them near to Allah, but Allah (may He be Praised)
responded to this, Verily, Allâh will judge between them concerning that wherein they differ. Truly, Allâh guides not
him who is a liar, and a disbeliever. 
Allah (may He be Praised) declared that they are both liars in the claim that their deities bring them near to Allah,
and disbelievers because of committing this act. There are many Ayahs that support this meaning.
All praise be to Allah, Lord of the worlds. May peace and blessings be upon our Prophet Muhammad, his family, his
Companions, Tabi`un and those who followed them in the best manner until the Day of Resurrection!