In connection with the problems facing the friends in their teaching work; these, the Guardian is well aware, are by no means easy to overcome, specially in view of the limited number and resources of the believers. But in the field of Bahá’í service, as the history of the Cause abundantly demonstrates, there is no obstacle that can be said to be unsurmountable. Every difficulty will, in due time, be solved. But continued and collective effort is also needed. The Bahá’í teacher should not get discouraged at the consciousness of the limitations within or without him. He should rather persevere, and be confident, that no matter how numerous and perplexing the difficulties that confront him may appear, he is continually assisted and guided through Divine Confirmations. He should consider himself as a mere instrument in the Hands of God, and should, therefore, cease looking at his own merits.
The first and most important qualification of a Bahá’í Teacher is, indeed, unqualified loyalty and attachment to the Cause. Knowledge is, of course essential; but compared to devotion it is secondary in importance.
~ Shoghi Effendi Source
: Directives from the Guardian, Pp. 69-70. © Bahá'í International Community.