Qur’anic verses and poetic lines share a limited feature: endings and sound relationships can guide the listener’s attention. That does not make their technical systems or their aims identical.
Arabic poetry conventionally follows prescribed metres and patterns of rhyme. Qur’anic verses exhibit greater freedom in length, stopping points, and final sounds. Neighbouring verses may have related endings, while a single surah may combine brief and extended utterances.
The distinction: beauty in verse arrangement is connected not only to sound but also to meaning, context, and natural utterance. It is therefore misleading to describe a Qur’anic verse simply as a line of poetry.