'Brother' in the Bible

From Paul, a prisoner of Christ Jesus, and Timothy our brother, to Philemon, our dear friend and colaborer,

I have had great joy and encouragement because of your love, for the hearts of the saints have been refreshed through you, brother.

no longer as a slave, but more than a slave, as a dear brother. He is especially so to me, and even more so to you now, both humanly speaking and in the Lord.

Yes, brother, let me have some benefit from you in the Lord. Refresh my heart in Christ.