Matthew 1:20

20But as he considered these things, behold, aan angel of the Lord appeared to him in a dream, saying, “Joseph, son of David, do not fear to take Mary as your wife, for that which is conceived in her is from the Holy Spirit.

Luke 1:27

27 bto a virgin betrothed
That is, legally pledged to be married
to a man whose name was Joseph, dof the house of David. And the virgin’s name was Mary.

Luke 1:31

31And behold, eyou will conceive in your womb and bear a son, and fyou shall call his name Jesus.
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