Then Joseph being raised from sleep did as the angel of the Lord had bidden him, and took unto him his wife:
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Chromatius of Aquileia
AD 407
Joseph therefore learns from the angel about the sacrament of the heavenly mystery and happily complies with the angel’s word. Rejoicing, he abides by the divine plan. He accepts holy Mary and glories in exultant praise because he was deemed worthy to hear that the virgin mother of such great majesty was called by the angel to be his wife.
Behold a wakeful, vigilant soul who immediately obeyed.
The evangelist continually calls her "the wife of Joseph" to allay evil suspicion and to show that she was not anyone else’s wife but his.