'Brother' in the Bible

They entered the city, and they went up to the upper room which was now their fixed place for meeting. Their names were Peter and John, James and Andrew, Philip and Thomas, Bartholomew and Matthew, James the son of Alphaeus, Simon the Zealot, and Judas the brother of James.

So Ananias went and entered the house; and, laying his two hands upon Saul, said, "Saul, brother, the Lord--even Jesus who appeared to you on your journey--has sent me, that you may recover your sight and be filled with the Holy Spirit."

and James, John's brother, he beheaded.

And they, when they had heard his statement, gave the glory to God. Then they said, "You see, brother, how many tens of thousands of Jews there are among those who have accepted the faith, and they are all zealous upholders of the Law.

came to me and standing at my side said, "'Brother Saul, recover your sight.' "I instantly regained my sight and looked up at him.