Matthew 12:47

“Then one said unto him, etc.] Either one of his auditors, or, as the Ethiopic version has it, one “of his disciples”: the other evangelists intimate, that more than one acquainted him with it; which is easily reconciled: for, upon his mother and brethren calling to him, as Mark says they did; first one and then another, and more, might apprise him of it, and especially as he did not immediately go out unto them. Behold, thy mother and thy brethren stand without, desiring to speak with thee: whether this message was carried at the request of the mother and brethren of Christ, and delivered in a simple manner, and with an honest intention; or whether it was officiously done, and with a design…”

“Then one said unto him, Behold, thy mother and thy brethren stand without, desiring to speak with thee, &c.--Absorbed in the awful warnings He was pouring forth. He felt this to be an unseasonable interruption, fitted to dissipate the impression made upon the large audience--such an interruption as duty to the nearest relatives did not require Him to give way to. But instead of a direct rebuke, He seizes on the incident to convey a sublime lesson, expressed in a style of inimitable condescension.”

“See also Mark 3:31-35; Luke 8:19-21. His brethren - There has been some difference of opinion about the persons who are referred to 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. The natural and obvious meaning is, however, that they were the children of Mary his mother. See also Mark 6:3. To this opinion, moreover, there can be no valid objection. Matthew 12:48 Who is my mother? ... - There was no want of affection or respect in Jesus toward his mother, as is proved by his whole life. See especially Luke 2:51, and John…”