The objection succeeds only if Islamic transcendence means that Allah is wholly unknowable and without real attributes. That is not what tawhid teaches: Allah's essence is beyond creation's comprehension, yet He makes Himself genuinely known through His names, attributes, speech, and acts.
The strongest form of the objection
The critic is right to press a real philosophical question. If Allah were merely an abstract, attribute-less unity, with no will, knowledge, speech, or love, then revelation would be difficult to explain. An abstraction cannot choose a prophet, address a community, command worship, forgive sins, or enter into a meaningful relationship. Likewise, if Allah were absolutely unknowable in every sense, religious language about Him would have no definite content.
The objection also points to a common misunderstanding of mediation. Since revelation is delivered through an angel and prophets, one might argue that Allah never actually speaks or relates to human beings. On that picture, Islam would offer only information about an unreachable first cause.
Transcendence is not attribute-less emptiness
The Quran does not describe Allah as a bare unity. It denies that anything resembles Him while affirming that He knows, wills, hears, sees, speaks, forgives, loves, and judges. These are not created parts added to Him. They are real divine attributes, understood in a manner befitting His majesty and without comparing Him to creatures.
"There is nothing like unto Him, and He is the All-Hearing, the All-Seeing."
Quran 42:11
This verse states both sides together: Allah is incomparable, but He is not unknowable. Classical Muslim theologians therefore distinguished between knowing Allah's essence exhaustively, which no creature can do, and knowing Allah truly through what He has revealed about Himself. A person can know the sun without comprehending its entire reality; the analogy is limited, but it illustrates the difference between knowledge and total comprehension.
"Say: He is Allah, the One. Allah, the Self-Sufficient. He neither begets nor is born, nor is there to Him any equivalent."
Quran 112:1-4
Surah al-Ikhlas rejects dependence, composition, genealogy, and likeness. It does not reject divine knowledge, will, speech, or mercy. Oneness means that Allah has no rival, partner, division, or equal - not that He has no meaningful qualities.
How revelation and relationship remain coherent
In Islam, revelation is Allah's deliberate communication, not an attempt to make His infinite essence comprehensible. He communicates a true and intelligible message in created human language. The angel's role is a means of delivery, not evidence that Allah is incapable of speaking.
"It is not for any human being that Allah should speak to him except by revelation, or from behind a partition, or that He sends a messenger who reveals, by His permission, what He wills."
Quran 42:51
Worship is therefore relational: Allah addresses people, hears their prayers, responds to repentance, guides whom He wills, and calls them to know and love Him. This is not fellowship between equals, nor a claim that humans encompass God. It is a relationship between the Creator and His servants, established by divine initiative.
The argument establishes a genuine problem for an attribute-less, impersonal deity. It does not establish that Islamic tawhid teaches such a deity. Islam joins incomparability with real knowledge of Allah, and transcendence with meaningful revelation.