'Brethren' in the Bible

and thou hast gone in there, and see thou there Jehu son of Jehoshaphat, son of Nimshi, and thou hast gone in, and caused him to rise out of the midst of his brethren, and brought him in to the inner part of an inner-chamber,

and Jehu hath found the brethren of Ahaziah king of Judah, and saith, 'Who are ye?' and they say, 'Brethren of Ahaziah we are, and we go down to salute the sons of the king, and the sons of the mistress.'

only, the priests of the high places come not up unto the altar of Jehovah in Jerusalem, but they have eaten unleavened things in the midst of their brethren.