'Brotherly' in the Bible

being devoted to one another in brotherly love, esteeming one another [more highly] in honor,

But concerning brotherly love, I do not have need to write to you, for you yourselves are taught by God to love one another,

Brotherly love must continue.

Having purified your souls by your obedience to the truth for sincere brotherly love, love one another fervently from the heart,

and with godliness, brotherly love, and with brotherly love, love.