'Brother' in the Bible

From: Paul, an apostle of the Messiah Jesus by the will of God, and Timothy our brother. To: God's church in Corinth, and to all the holy people throughout Achaia.

but my spirit could not find any relief, because I couldn't find Titus, my brother. So I said goodbye to them and went on to Macedonia.

With him we have sent the brother who is praised in all the churches for spreading the gospel.

We have also sent with them our brother whom we have often tested in many ways and found to be dedicated. At present he is more dedicated than ever because he has so much confidence in you.

I encouraged Titus to visit you, and I sent along with him the brother you know so well. Titus didn't take advantage of you, did he? We conducted ourselves with the same spirit, didn't we? We took the very same steps, didn't we?