'Brethren' in the Bible

and I will cast you out of my sight, as I have cast out all your brethren, all the seed of Ephraim.

For even thy brethren, and the house of thy father, even they have dealt treacherously with thee, even they have cried aloud after thee. Believe them not, though they speak good words unto thee.

yea, thus saith Jehovah concerning the king that sitteth upon the throne of David, and concerning all the people that dwell in this city, your brethren that are not gone forth with you into captivity;

And I took Jaazaniah the son of Jeremiah, the son of Habazziniah, and his brethren, and all his sons, and the whole house of the Rechabites,

But ten men were found among them that said unto Ishmael, Do not kill us, for we have hidden stores in the field, of wheat, and of barley, and of oil, and of honey. So he forbore, and did not kill them among their brethren.

But I have made Esau bare, I have uncovered his secret places, that he is unable to hide himself: his seed is wasted, and his brethren, and his neighbours, and he is not.