'Brethren' in the Bible

and Abner calleth unto Joab, and saith, 'For ever doth the sword consume? hast thou not known that it is bitterness in the latter end? and till when dost thou not say to the people to turn back from after their brethren?'

And it is displeasing to Abner exceedingly, because of the words of Ish-Bosheth, and he saith, 'The head of a dog am I -- that in reference to Judah to-day I do kindness with the house of Saul thy father, unto his brethren, and unto his friends, and have not delivered thee into the hand of David -- that thou chargest against me iniquity concerning the woman to-day?

Yesterday is thy coming in, and to-day I move thee to go with us, and I am going on that which I am going! -- turn back, and take back thy brethren with thee, -- kindness and truth.'

my brethren ye are, my bone and my flesh ye are, and why are ye last to bring back the king?

And, lo, all the men of Israel are coming unto the king, and they say unto the king, 'Wherefore have they stolen thee -- our brethren, the men of Judah?' (and they bring the king and his household over the Jordan, and all the men of David with him).