'Brotherly' in the Bible
Thus says the Lord,“For three transgressions of Tyre and for four (multiplied delinquencies)I will not reverse its punishment or revoke My word concerning it,Because they [as middlemen] deported an entire [Jewish] population to EdomAnd did not [seriously] remember their covenant of brotherhood.
Be devoted to one another with [authentic] brotherly affection [as members of one family], give preference to one another in honor;
Now concerning brotherly love, you have no need for anyone to write you, for you have been [personally] taught by God to love one another [that is, to have an unselfish concern for others and to do things for their benefit].
Be hospitable to one another without complaint.
and in your godliness, brotherly affection, and in your brotherly affection, [develop Christian] love [that is, learn to unselfishly seek the best for others and to do things for their benefit].