Luke 8:19

‘And there came to him his mother and brethren, and they could not come at him for the crowd.'

Mark 3:21 tells us that they came because they thought that He was ‘beside Himself'. Luke leaves it to be inferred. He had had much to do with Jesus' mother and therefore was sympathetic in his treatment of her. However the tale had to be told. But he does make it clear that they had not come to join the crowd or to hear. Rather they wanted to ‘come at Him'. Their purpose was not concerned with the cause of the Kingly Rule of God.