'Brethren' in the Bible

And there came unto him his mother and brethren, and they were not able to get to him because of the multitude,

and it was told him, saying, 'Thy mother and thy brethren do stand without, wishing to see thee;'

and he answering said unto them, 'My mother and my brethren! they are those who the word of God are hearing, and doing.'

And he said also to him who did call him, 'When thou mayest make a dinner or a supper, be not calling thy friends, nor thy brethren, nor thy kindred, nor rich neighbours, lest they may also call thee again, and a recompense may come to thee;

and I besought for thee, that thy faith may not fail; and thou, when thou didst turn, strengthen thy brethren.'