'Brother' in the Bible

And Ananias went out and came to the house, and putting his hands on him, said, Brother Saul, the Lord Jesus, whom you saw when you were on your journey, has sent me, so that you may be able to see, and be full of the Holy Spirit.

And he put James, the brother of John, to death with the sword.

And hearing it, they gave praise to God; and they said to him, You see, brother, what thousands there are among the Jews, who have the faith; and they all have a great respect for the law:

Came to my side and said, Brother Saul, let your eyes be open. And in that very hour I was able to see him.

And Paul said, Brother, I had no idea that he was the high priest: for it has been said, You may not say evil about the ruler of your people.