The Qur'an refers to Mary as the 'sister of Aaron,' implying she is of the lineage of Aaron and thus a Levite.

Badawi's argument begins with a misunderstanding of the term 'sister of Aaron' as it relates to Mary. He assumes it denotes a literal blood relationship, which is not supported by biblical or Qur'anic usage. In the Bible, the term 'daughter of' is used to indicate lineage, as seen in Luke 1:5 where Elizabeth is called a 'daughter of Aaron.' The phrase 'sister of' or 'brother of' is never used in the Bible to refer to ancestry. Instead, it indicates a contemporary relationship. For example, in Luke 13:16, Jesus refers to a woman as a 'daughter of Abraham,' clearly indicating lineage. Furthermore, the Qur'an itself provides examples where 'brother of' refers to contemporaries, such as in Sura 7:65 and Sura 11:50, where prophets are referred to as the 'brother' of their respective peoples, not as their ancestors. Thus, Badawi's interpretation fails to align with the linguistic and contextual usage of these terms in both scriptures.