Luke 8:19-21 – Now Jesus’ mother and brothers came to see him, but they were not able to get near him because of the crowd. Someone told him, “Your mother and brothers are standing outside, wanting to see you.”  He replied, “My mother and brothers are those who hear God’s word and put it into practice.”
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What kind of son would not even help his family get through the crowd to be able to talk to Him? Sounds pretty rude and inconsiderate, doesn’t it. But this didn’t come as a surprise to the original readers. They knew something that Luke doesn’t record here. We have to go to Mark for the surprising explanation.

Mary and the brothers of Jesus thought he was crazy!  They had come to take him by force and get him out of the public eye. He was an embarrassment to them. Later Mary and at least some of his brothers became believers (the book of James and the book of Jude were both written by his brothers.)

If you have unbelieving family that think you are crazy, be encouraged. Those that saw Jesus grow up, saw His life and saw His miracles thought He was crazy, too. But eventually God was able to change their hearts and they became believers. Keep living faithfully for the Lord, love them, bless them, pray for them and let God work on their hearts.
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Mark 3:20-21
Then Jesus entered a house, and again a crowd gathered, so that he and his disciples were not even able to eat. When his family heard about this, they went to take charge of him, for they said, “He is out of his mind.”

John 7:5
For even his own brothers did not believe in him.