Someone told Him, “Look, Your mother and brothers are standing outside, wanting to speak to You.”
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
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.