Let brotherly love continue. (Heb 13:1)
Be kindly affectionate to one another with brotherly love, in honor giving preference to one another . . . (Rom 12:10)
But concerning brotherly love you have no need that I should write to you, for you yourselves are taught by God to love one another . . . (1 Thes 4:9)
What is “brotherly love”? It is having a love for all mankind. This is the kind of love that desires the best for other people; helps others; and prays for good things to happen to other people.
We are called by God to love all mankind because all humanity was created by God in His image, and due to that fact, can be called children of God. The Lord tells us that if we say that we love Him but we hate our brother, then we must be lying! (1 Joh 4:20) Also, it is a commandment of God that we love one another! (Joh 13:34, see also 1 Joh 3:11)
Beloved, let us love one another, for love is from God, and whoever loves has been born of God and knows God. (1 Joh 4:7)
The Bible says that one characteristic of a true disciple of Jesus Christ is that they demonstrate love for other people. (Joh 13:35) The Word goes on to point out that brothers (and sisters) suffer together and share joy together. (1 Cor 12:26)
Brotherly/sisterly affection and love covers [overlooks, forgives] a multitude of sins. (1 Pet 4:8)
Love does no wrong to a neighbor; therefore love is the fulfilling of the law. (Rom 13:10) Brotherly and sisterly love for other people is a fulfillment of the highest law that the Lord has given to us, that we love one another!