John Gill - Exposition
John Gill
Now all this was done,.... These are not the words of the Angel, but of the Evangelist; observing that Mary's being with child of the Holy Ghost, and her conception in such an extraordinary manner, whilst a pure virgin, before she and Joseph came together, who though espoused to him, was untouched by him, were all brought about in this way, and with such circumstances, that it might be fulfilled...