وَصَدَّقَتْ بِكَلِمَاتِ رَبِّهَا وَكُتُبِهِ (and she testified to the truth of the words of her Lord and His books, and she was one of the devout....At-Tahrim 66:12 ⧉) The phrase 'Words of her Lord' refers to scriptures that were revealed to the Holy Prophets ﷺ . The word kutub [ Books ] refers to the well-known celestial books - Injil, Zabur and Torah. The concluding statement وَكَانَتْ مِنَ الْقَانِتِينَ (and she was one of the devout....At-Tahrim 66:12 ⧉) describes the quality of Sayyidah Maryam (علیہا السلام) . The word qanitin is the plural of qanit and signifies 'devout and obedient'. Sayyidna Abu Musa (علیہ السلام) narrates that the Messenger of Allah ﷺ said: "Whilst many men have attained spiritual perfection, among women only Sayyidah ` Asiyah ؓ ، wife of Fir'aun, and Sayyidah Maryam, daughter of ` Imran (علیہما السلام) ، achieved this perfection." [ Bukhari and Muslim as quoted by Mazhari ]. Apparently, 'perfection' in this context refers to 'characteristics of Prophethood'. Despite being a woman, she achieved them. [ Mazhari ]. And Allah knows best!