'Brother' in the Bible

From Paul, an apostle of Christ Jesus by the will of God, and Timothy our brother, to the church of God that is in Corinth, with all the saints who are in all Achaia.

I had no relief in my spirit, because I did not find my brother Titus there. So I said good-bye to them and set out for Macedonia.

And we are sending along with him the brother who is praised by all the churches for his work in spreading the gospel.

In addition, this brother has also been chosen by the churches as our traveling companion as we administer this generous gift to the glory of the Lord himself and to show our readiness to help.

And we are sending with them our brother whom we have tested many times and found eager in many matters, but who now is much more eager than ever because of the great confidence he has in you.

I urged Titus to visit you and I sent our brother along with him. Titus did not take advantage of you, did he? Did we not conduct ourselves in the same spirit? Did we not behave in the same way?