Is not this the carpenter, the son of Mary and brother of James, Joseph, Judas and Simon? And are not his sisters living here among us?” And they were led to doubt His true identity.
While Jesus was still speaking to the large crowds, His mother and [half-] brothers were standing outside [of the large house. See 13:1] wanting to speak to Him.
Jesus then went to Nazareth where He had been brought up. He entered the synagogue on the Sabbath day, according to His custom, and stood up to read [the Scriptures].
And He replied to them, “No doubt you will tell me this proverb, ‘Doctor, heal yourself,’ and ‘Perform [the miracles] here in your own home town also that we heard you did in Capernaum.’”