The Quran's supposed scientific miracles are not, by themselves, a knockdown proof of revelation. Some verses are strikingly compatible with established science, but the argument becomes weak when vague language is treated as a precise prediction discovered only after modern theories appear.
The strongest form of the objection
The critic is right to press the method itself. A reader can take a broad phrase, connect it to a modern discovery, and then overlook other possible meanings. If the same procedure produces "miracles" in the Bible, Hindu scriptures, or other religious texts - even when those religions contradict one another - then the procedure has little evidential value. A method that is flexible enough to confirm almost anything is not a reliable test of divine authorship.
There is also a historical concern. Classical Muslim exegetes did not generally read these passages as compressed modern science. That does not disprove a later meaning, but it should make us cautious about claiming that the Quran clearly predicted a modern theory.
What these verses actually establish
"Have those who disbelieve not considered that the heavens and the earth were one mass, then We split them apart, and We made from water every living thing? Will they not believe?"
Quran 21:30
This can sound reminiscent of a cosmic beginning, but it does not state the Big Bang theory, its mathematics, or its observable predictions. It may reasonably be seen as compatible with cosmic origins, yet compatibility is not the same as prediction.
"And the heaven We constructed with strength, and indeed, We are its expander."
Quran 51:47
The Arabic wording can support a reference to expansion, though classical interpretation also included meanings such as vastness and power. The modern reading is possible and interesting, but the verse is not so precise that it independently identifies the expanding universe.
"Then We developed the drop into a clinging form, then We developed the clinging form into a lump, then We developed the lump into bones, then We clothed the bones with flesh."
Quran 23:14
These stages invite reflection on human development. Yet ancient people observed miscarriage and fetal development, and the passage does not map neatly onto modern embryology in every detail. It should not be presented as a scientific diagram.
What a careful argument can still say
These passages may contribute to a cumulative case when read alongside the Quran's language, coherence, theological depth, historical impact, and claim to revelation. A believer may regard their breadth and suggestiveness as signs. But they should not be made to carry more weight than they can bear.
The proper standard is a constrained interpretation: clear wording, a meaning available from the Arabic, no forced reinterpretation, and a claim that could have counted against the theory. If a reading is invented after a discovery and can be adjusted to fit rival texts, it is confirmation bias, not strong evidence. These verses can reasonably support faith as signs, but they do not, alone, prove that the Quran is divine. The Quran's central evidence is not a catalogue of scientific predictions, but its overall message and claim to be God's guidance.