Do bad deeds erase good deeds?

Question:
May Allah reward you. This questioner says: It is reported that good deeds erase bad deeds, so do bad deeds also erase good deeds, O Shaykh?

Answer:
Yes, the state of shirk (associating partners with Allah) erases good deeds, and shirk invalidates all deeds, may Allah protect us from it. Likewise, envy consumes good deeds just as fire consumes firewood. Likewise, the injustices committed against people take the good deeds of the wronged, so on the Day of Resurrection, retribution is taken from his good deeds for the sake of those who were wronged. So the Muslim must preserve his good deeds and his righteous actions. Likewise, backbiting and talebearing. If a Muslim’s action involves backbiting people or spreading tales among them, then this erases his good deeds. So the Muslim must preserve his actions from factors that affect them, from things that invalidate them, and from things that destroy them. Yes.