BROTHER, A fraternal epithet, especially among Christians.

=>Used by disciples

Acts 9:17

17. And Ananias went his way, and entered into the house; and putting his hands on him said, BROTHER Saul, the Lord, even Jesus, that appeared unto thee in the way as thou camest, hath sent me, that thou mightest receive thy sight, and be filled with the Holy Ghost.

Acts 21:20

20. And when they heard it, they glorified the Lord, and said unto him, Thou seest, BROTHER, how many thousands of Jews there are which believe; and they are all zealous of the law:

Romans 16:23

23. Gaius mine host, and of the whole church, saluteth you. Erastus the chamberlain of the city saluteth you, and Quartus a BROTHER.

1 Corinthians 7:12

12. But to the rest speak I, not the Lord: If any BROTHER hath a wife that believeth not, and she be pleased to dwell with him, let him not put her away.

2 Corinthians 2:13

13. I had no rest in my spirit, because I found not Titus my BROTHER: but taking my leave of them, I went from thence into Macedonia.