Opening the verse
يَـٰٓأُخْتَ هَـٰرُونَ مَا كَانَ أَبُوكِ ٱمْرَأَ سَوْءٍ وَمَا كَانَتْ أُمُّكِ بَغِيًّا
O sister [i.e., descendant] of Aaron, your father was not a man of evil, nor was your mother unchaste."
Scholars differ
"Sister of Harun" is explained in two ways: that Maryam descended from Harun, the brother of Musa, or that she was named after a righteous man of her time called Harun. A hadith in Sahih Muslim says people used to be named after earlier prophets and righteous people.
Narrated Al-Mughirah bin Shu'bah:"The Messenger of Allah (ﷺ) sent me to Najran. They said to me: 'Do you people not recite: O sister of Harun (19:28) - while between Musa and 'Eisa there is such (gap) as there is?' I did not know how to respond to them. So when I returned to the Prophet (ﷺ), I told him about that, and he said: 'Why didn't you tell them that they were named after their Prophets and righteous people before them