It is very discouraging to find inactive and unresponsive believers; on the other hand we must always realize that some souls are weak and immature and not capable of carrying on an active administrative burden. They need encouragement, the love of their fellow Bahá’ís and assistance. To blame them for not doing more for the Cause is useless, and they may actually have a very firm belief in Bahá’u’lláh which with care could be fanned into flame.

Shoghi Effendi, Lights of Guidance, p. 84

There is so much suffering, such a great and desperate need for a true remedy and the Bahá’ís should realize their sacred obligation is to deliver the message to their fellowmen at once, and on as large a scale as possible. If they fail to do so, they are really partly responsible for prolonging the agony of humanity.

Shoghi Effendi, Lights of Guidance, p. 127

If believers become inactive it is naturally desirable that the Local Spiritual Assemblies attempt to maintain contact with them and encourage them to become active unless, of course, it is obvious that their personal situation precludes such activity. For example, a Bahá’í who is married to a non-Bahá’í may well have to limit his activities to some degree in order to maintain the unity of his family.

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