41:3
A Book, whereof the verses are explained in detail;- a Qur’an in Arabic, for people who
understand;-
In Qurʾānic interpretation, the statement that the signs or verses of the Qur’an have been expounded indicates that they have been clarified and explained through various arguments and evidences supporting the oneness of God and the truth of prophethood. Classical commentators explain that this clarification occurs through the diverse forms of reasoning, parables, and proofs presented throughout the Qurʾān (as discussed in classical commentaries attributed to scholars such as Al-Qurtubi and Al-Tabari).
The Qurʾān is therefore described as a scripture whose verses are firmly established and then fully explained, originating from the presence of a Wise and All-Aware source (Qurʾān 11:1). In this context, the term “Qurʾān” is understood in its linguistic sense of “recitation,” referring to the revelation delivered in the form of an Arabic recitation. Several Qurʾānic passages emphasize that this message was revealed in Arabic so that it could be clearly understood by its initial audience (e.g., Qurʾān 12:2; 16:103; 20:113; 26:195; 43:3).
Other verses indicate that the explanation of these signs is intended for different categories of people depending on their intellectual and spiritual engagement. Some passages state that the verses are clarified for those who possess knowledge, for those who reflect, for those who take heed, or for those who understand. The purpose of this exposition is to guide people toward certainty regarding their eventual meeting with their Lord and to encourage them to return to the path of faith and moral responsibility. In this way, the Qurʾānic presentation of its signs is understood as both a rational and spiritual invitation for human reflection and guidance.
References:
Nasr, Hossein (2015). Study Quran.