19And His mother and brothers came to Him, and they were unable to get to Him because of the crowd. 20And it was reported to Him, “Your mother and Your brothers are standing outside, wishing to see You.” 21But He answered and said to them, “My mother and My brothers are these who hear the word of God and do it.” Luke 8:19-21
Here Jesus uses the cultural expectation that he would immediately defer to his mother and brothers over the crowd to make a huge point. He defers to the obedient, the doers (poieō) of the word.
Later in Luke 11:27-28, this point is made clear again, but with a twist.
27While Jesus was saying these things, one of the women in the crowd raised her voice and said to Him, “Blessed is the womb that bore You and the breasts at which You nursed.” 28But He said, “On the contrary, blessed are those who hear the word of God and observe it.”
Here the emphasis is on abstaining from some action (phylassō).
Both doing and not doing are a part of obedience.
Jesus never let a good contrast go to waste.