John Gill

And when he, had called all the people unto him,.... The Vulgate Latin, and Ethiopic versions, instead of "all", read again, and so do some copies: having said what was sufficient to stop the mouths of the Scribes and Pharisees, about their unwarrantable traditions; he turns himself to the common people, who stood at some distance, because of these venerable doctors, and called to them to come nearer to him: he said unto them, hearken to me every one of you, and understand; signifying, he had something of moment to say to them, which they would do well to attend unto, and what they should be desirous of understanding aright, it being what concerned every one of them; See Gill on Mat 15:10.