And Mary abode with her about three months, and returned to her own house.
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Theophilus of Antioch
AD 184
For in the sixth month of the conception of the forerunner, the Angel came to Mary, and she abode with Elisabeth three months, and so the nine months are completed.
But when Elisabeth was going to bring forth, the Virgin departed, as it follows, And she returned; or, probably because of the multitude, who were about to assemble at the birth. But it became not a virgin to be present on such an occasion.