She says it not ignorantly, for she knew it was by the grace and operation of the Holy Spirit that the mother of the prophet should be saluted by the mother of his Lord, to the advancement and growth of her own pledge; but being aware that this was of no human deserving, but a gift of Divine grace, she therefore says, Whence is this to me, that is, By what right of mine, by what that I have done, for what good deeds?
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).