While Jesus was still speaking to the crowds, His mother and brothers stood outside, wanting to speak to Him.
Many excellent, useful sayings came from the mouth of our Lord Jesus upon particular occasions; even his digressions were instructive, as well as his set discourses: as here, Observe, I. How Christ was interrupted in his preaching by his mother and his brethren, that stood without, desiring to speak with him (Mat 12:40, Mat 12:47); which desire of theirs was conveyed to him through the crowd.
Commenting on Matthew 12:46-50
Verses 46-50. See also . His brethren. There has been some difference of opinion about the persons who were meant here; some supposing that they were children of Mary his mother, others that they were the children of Mary the wife of Cleophas or Alpheus his cousins, and called brethren according to the customs of the Jews.
While he yet talked to the people, behold, his mother and his brethren--(See on Mat 13:55-56). stood without, desiring to speak with him--"and could not come at Him for the press" (Luk 8:19). For what purpose these came, we learn from Mar 3:20-21.