لا من حيث إنه لفظ وصوت بل باعتبار إفادته المعنى
Not insofar as it is merely wording and sound, but in consideration of its conveying meaning.
This short passage corrects a common confusion. Balagha is not simply attractive acoustics; it is a property of meaning-bearing discourse. A pleasing voice can be valuable in its own category, but it does not repair a meaning or style incompatible with the occasion.
For example, a consoling address containing inappropriate humor does not become rhetorically suitable merely because it is delivered melodiously.