Luke narrates the angel Gabriel's announcement to Mary
that she is to conceive a son
and remain a virgin.
Luke 1: 26-38
...(The angel Gabriel said) "Hail,
favored
one! The Lord is with you ...
The holy Spirit will come upon
you, and
the power of the Most High will
overshadow you. Therefore the child
to be born will be called holy,
the Son
of God." ... Mary said,
"Behold, I am
the handmaid of the Lord. May it be
done to me according to your
word."