Covenant-breaker might be a lamb in front of you, telling you by heart Bahá’u’lláh’s words but he is a wolf.

When Covenant-Breakers passed through Peru and contacted the media, Mas’ud immediately gathered the youth and the community to advise them:

One of the many experiences with Mr Khamsi that reinforced my knowledge about the Covenant was when a newspaper published Covenant-breakers’ material. Some Bahá’ís received letters from the Covenant-breakers and their letters began to spread. He spoke about the Covenant-breakers directly, openly, and talked about the faithfulness that we should have to the Universal House of Justice. He was very emphatic, talking without hesitations, about the love to ‘Abdu’l-Bahá, the love to Shoghi Effendi and the love to the Blessed Beauty. One of the things that Mr Khamsi said very clearly was that the Covenant-breaker “might be a lamb in front of you, telling you by heart Bahá’u’lláh’s words but he is a wolf. You have to pay attention to your ears, to any key word that he might say and right there you point”. His words were a blessing. He was always protecting the youth from what might come.

(The Khamsis: A Cradle of True Gold by Boris Handal)

https://bahai-library.com/pdf/h/handal_khamsis_cradle_gold.pdf