to take unto thee Mary thy wife] To take her home to thy house, as thy wife, who is already betrothed to thee. that which is conceived in her] Or, bred: To wit, of her substance. And he saith, that, not he, because Christ took on him the nature, not the person of man. is of the Holy Ghost] See on verse 18. As man he had no father, as God he had no mother, Hebrews 7:3.