The Family of Imran
إِذْ قَالَتِ ٱلْمَلَـٰٓئِكَةُ يَـٰمَرْيَمُ إِنَّ ٱللَّهَ يُبَشِّرُكِ بِكَلِمَةٍ مِّنْهُ ٱسْمُهُ ٱلْمَسِيحُ عِيسَى ٱبْنُ مَرْيَمَ وَجِيهًا فِى ٱلدُّنْيَا وَٱلْـَٔاخِرَةِ وَمِنَ ٱلْمُقَرَّبِينَ
[And mention] when the angels said, "O Mary, indeed Allah gives you good tidings of a word from Him, whose name will be the Messiah, Jesus, the son of Mary - distinguished in this world and the Hereafter and among those brought near [to Allah].
Nearby ayahs help place verse 3:45 in sequence and meaning.
يَـٰمَرْيَمُ ٱقْنُتِى لِرَبِّكِ وَٱسْجُدِى وَٱرْكَعِى مَعَ ٱلرَّٰكِعِينَ
O Mary, be devoutly obedient to your Lord and prostrate and bow with those who bow [in prayer]."
ذَٰلِكَ مِنْ أَنۢبَآءِ ٱلْغَيْبِ نُوحِيهِ إِلَيْكَ ۚ وَمَا كُنتَ لَدَيْهِمْ إِذْ يُلْقُونَ أَقْلَـٰمَهُمْ أَيُّهُمْ يَكْفُلُ مَرْيَمَ وَمَا كُنتَ لَدَيْهِمْ إِذْ يَخْتَصِمُونَ
That is from the news of the unseen which We reveal to you, [O Muhammad]. And you were not with them when they cast their pens as to which of them should be responsible for Mary. Nor were you with them when they disputed.
وَيُكَلِّمُ ٱلنَّاسَ فِى ٱلْمَهْدِ وَكَهْلًا وَمِنَ ٱلصَّـٰلِحِينَ
He will speak to the people in the cradle and in maturity and will be of the righteous."
قَالَتْ رَبِّ أَنَّىٰ يَكُونُ لِى وَلَدٌ وَلَمْ يَمْسَسْنِى بَشَرٌ ۖ قَالَ كَذَٰلِكِ ٱللَّهُ يَخْلُقُ مَا يَشَآءُ ۚ إِذَا قَضَىٰٓ أَمْرًا فَإِنَّمَا يَقُولُ لَهُۥ كُن فَيَكُونُ
She said, "My Lord, how will I have a child when no man has touched me?" [The angel] said, "Such is Allah; He creates what He wills. When He decrees a matter, He only says to it, 'Be,' and it is.