On the commitment to brotherhood, the avoidance of backbiting... and seeking forgiveness for the brethren.

And he, from whom is peace, said: "Is it not my right upon you that you connect with your brethren? Is it not my right upon you that you uphold the dignity (Jah) [1] of your brethren, and that you do not abandon your brethren nor cut ties with them? For whoever cuts ties with his brethren, his rope of faith shall be severed, and he shall be deprived of the supplication of the brethren and the high rank in the gardens [of Paradise]."

And the Master Christ (al-Sayyid al-Masih), peace be upon him, said in the twentieth chapter of the Gospel of Matthew: "And whoever desires to be first among you, let him be your servant, just as the Son of Man did not come to be served, but to serve, and to give his soul as a ransom for many."

And in the fifth chapter of the Gospel of Matthew: "Therefore, if you bring your offering to the altar, and there you remember that your brother has something against you, leave your offering there before the altar, and go first and be reconciled with your brother, and then come and offer your offering. Be agreeable with your adversary quickly, while you are on the way with him."

And what is intended by "the way" here is the straight path (al-Sirat al-Mustaqim) esoterically (Batinan). And from this chapter also: