Research Questions

01What is the lexical and contextual meaning of la-mūsiʿūn (لَمُوسِعُونَ)?
02Is there linguistic evidence for reinterpreting la-mūsiʿūn as describing an ongoing expansion of the universe?

Lexical Analysis

The Root و-س-ع

The root و-س-ع fundamentally denotes spaciousness, amplitude, and capacity. Its derivatives appear across the Qur'ān in contexts of divine power (Q 2:255 — "His Kursī extends over the heavens and earth"), provision (Q 65:7), and scale. The same root gives the divine name al-Wāsiʿ — the All-Encompassing.

The Form IV verb أَوْسَعَ means "to cause to be spacious, to expand, to make wide." In Q 2:236, the same participle describes a person of means: "let the one of ample means (al-mūsiʿ) spend according to his means" — demonstrating that the root carries spaciousness without necessarily implying physical expansion.

The Grammatical Key: Active Participle

The critical grammatical point is that لَمُوسِعُونَ is an ism fāʿil (active participle) — not a past tense verb. Arabic makes a fundamental distinction: a past tense verb ("We expanded") describes a completed action, while an active participle ("We are expanders") describes an ongoing state or characteristic. The emphatic structure وَإِنَّا لَمُوسِعُونَ reinforces this continuity.

This is linguistically significant: the verse does not say "We expanded the universe at a single moment" but rather affirms an ongoing condition of expansiveness — which is precisely what modern cosmology describes as the continuous expansion of space.

Classical Tafsīr

Al-Ṭabarī — Jāmiʿ al-Bayān

Al-Ṭabarī reads la-mūsiʿūn as "We are indeed powerful, possessing capacity." He cites the opinion that the verse means Allāh built the sky with power and might, and that He is capable of expanding His provisions for His servants. The emphasis is on divine omnipotence and generosity, not physical cosmic expansion.

Jāmiʿ al-Bayān, al-Ṭabarī

Ibn Kathīr — Tafsīr al-Qurʾān al-ʿAẓīm

Ibn Kathīr interprets bi-aydin as "with strength" and la-mūsiʿūn as "and We are indeed powerful." He cites Ibn ʿAbbās: "possessing strength." The verse in his reading affirms Allāh's limitless power in creating and sustaining the cosmos.

Tafsīr al-Qurʾān al-ʿAẓīm, Ibn Kathīr

Al-Qurṭubī — Al-Jāmiʿ li-Aḥkām al-Qurʾān

Al-Qurṭubī notes that mūsiʿūn can mean both "possessing capacity/power" and "ones who expand." He records the view that it refers to the expansion of sustenance (rizq) and also the structural view that the heavens are vast and unbounded. His discussion reflects the classical awareness of the root's breadth.

Al-Jāmiʿ li-Aḥkām al-Qurʾān, al-Qurṭubī

The classical consensus reads la-mūsiʿūn as an affirmation of divine power and capacity — not a description of expanding space. The cosmic expansion interpretation is entirely a twentieth-century reading, emerging after Hubble's 1929 observations.

Morphological Analysis

ArabicTransliterationFormAnalysis
لَمُوسِعُونَ La-mūsiʿūn Form IV active participle + emphatic لَـ + plural ـونَ Root و-س-ع: expansion, spaciousness. Ongoing state: 'We are expanders.' Active participle conveys continuous present agency, not a completed past act.
بِأَيْدٍ Bi-aydin Prepositional phrase, genitive With hands / with power. ʾAyd is used for strength and capacity in classical Arabic.

Concluding Remarks

Conclusion

The linguistic case for an ongoing cosmic expansion is stronger here than in many concordist claims: the active participle form genuinely conveys continuity, and the root و-س-ع does denote expansion. The classical reading (divine power/capacity) remains primary, but the expansion interpretation is linguistically plausible — not forced.