Breathe not the sins of others so long as thou art thyself a sinner. Shouldst thou transgress this command, accursed wouldst thou be, and to this I bear witness.

Bahá’u’lláh, The Hidden Words, Arabic 27

For the tongue is a smoldering fire, and excess of speech a deadly poison. Material fire consumeth the body, whereas the fire of the tongue devoureth both heart and soul. The force of the former lasteth but for a time, whilst the effects of the latter endureth a century.

Bahá’u’lláh, Gleanings from the Writings of Bahá’u’lláh, p. 264

The best beloved of all things in My sight is Justice; turn not away therefrom if thou desirest Me, and neglect it not that I may confide in thee. By its aid thou shalt see with thine own eyes and not through the eyes of others, and shalt know of thine own knowledge and not through the knowledge of thy neighbor.

Bahá’u’lláh, The Arabic Hidden Words 2

If some people come to thee alone complaining against each other, don't listen to them, don't let them breathe the faults of others in thy presence. Tell them: “I have not come here to engage my time with these things. I am not a judge. I have come to summon the people to the Kingdom of Abhá, to call you to unity and accord, to raise the dead, make mindful those who are unaware, awaken those who are asleep, breathe new life into the mouldering bones and sound the trumpet of resurrection! Friends! It is high time for you to throw away these tales, these barren stories. God is not pleased with them, humanity is not pleased with them, Your time is too costly to be expended on these trifling events. You are made in the image and likeness of God. Your birthright is more valuable than all the treasures of the empires. Arise with heart and soul and let not these golden days slip by without results! This day is the day of the splendors of the Sun of Reality! This day is the day of the Lord of the Kingdom! This day is the day of the fulfillment of glorious promises! This day is the day of joy and fragrance! Petty bickerings and jealousies make one lose all the traces of spirituality, excommunicate a person from the divine company of the worthy ones, submerge one in the sea of phantasms, suffer one to become cold and pessimistic and throw him headlong into the depths of despair and helplessness! You must not listen to anyone speaking about another; because no sooner do you listen to one than you must listen to someone else, and thus the circle will be enlarged endlessly. Therefore, say to them: "O friends! Let us come together, forget all our self-thoughts and be in one accord, and cry at the top of our voices, 'Ya-Bahá-El-Abhá!'

‘Abdu’l-Bahá, "Star of the West," Vol. V, No. 1, p. 6

Remember, above all, the teaching of Bahá’u’lláh concerning gossip and unseemly talk about others. Stories repeated about others are seldom good. A silent tongue is the safest. Even good may be harmful, if spoken at the wrong time, or to the wrong person.

‘Abdu’l-Bahá, ‘Abdu’l-Bahá in London, p. 125

You must not listen to anyone speaking about another, because no sooner do you listen than you must listen to someone else and thus the circle will be enlarged endlessly.

‘Abdu’l-Bahá, Ramleh, Egypt, 29 October 1913, Star of the West - 4, p. 104

The friends should understand that they should not only cease backbiting and gossiping, but should cease listening to others who fall into this sin. Ignoring gossip and slander is a positive, constructive and healing action helpful to the community, the gossiper and to the persons slandered.

Universal House of Justice, NSA USA - Developing Distinctive Bahá’í Communities

We realize that a great problem is presented by gossip when it occurs in Bahá’í communities, and the poison it can instill into the relationship between the friends. However, deprivation of voting rights is usually of little help in such circumstances and should be resorted to only after other remedies have been tried and failed. We think it would be much better for the National Assembly to provide for the proper deepening of the friends and in a loving and patient manner attempt to instill in them a respect for Bahá’í laws. Rash action can dampen the zeal of the community, and this must be avoided at all costs.

Universal House of Justice, Lights of Guidance, p. 60

While gossip and backbiting are explicitly prohibited by Bahá’u’lláh, taking a problem to a Bahá’í institution, to a relevant civil or social service agency, therapist, or counselor to seek assistance with the problem is not viewed as gossip or backbiting.

National Spiritual Assembly of the Bahá’ís of the United States, Guidelines for Spiritual Assemblies on Domestic Violence, p. 55