Mary's spiritual purification

وَإِذْ قَالَتِ ٱلْمَلَـٰٓئِكَةُ يَـٰمَرْيَمُ إِنَّ ٱللَّهَ ٱصْطَفَىٰكِ وَطَهَّرَكِ وَٱصْطَفَىٰكِ عَلَىٰ نِسَآءِ ٱلْعَـٰلَمِينَ

And [mention] when the angels said, "O Mary, indeed Allāh has chosen you and purified you and chosen you above the women of the worlds.