The sanctified souls should ponder and meditate in their hearts regarding the methods of teaching. From the texts of the wondrous, heavenly Scriptures they should memorize phrases and passages bearing on various instances, so that in the course of their speech they may recite divine verses whenever the occasion demandeth it, inasmuch as these holy verses are the most potent elixir, the greatest and mightiest talisman. So potent is their influence that the hearer will have no cause for vacillation. I swear by My life! This Revelation is endowed with such a power that it will act as the lodestone for all nations and kindreds of the earth. Should one pause to meditate attentively he would recognize that no place is there, nor can there be, for anyone to flee to.
Baha’u’llah, Tablets of
The teaching work should under all conditions be actively pursued by the believers because divine confirmations are dependent upon it. Should a Bahá’í refrain from being fully, vigorously and wholeheartedly involved in the teaching work he will undoubtedly be deprived of the blessings of the Abhá Kingdom. Even so, this activity should be tempered with wisdom—not that wisdom which requireth one to be silent and forgetful of such an obligation, but rather that which requireth one to display divine tolerance, love, kindness, patience, a goodly character, and holy deeds. In brief, encourage the friends individually to teach the Cause of God and draw their attention to this meaning of wisdom mentioned in the Writings, which is itself the essence of teaching the Faith—but all this to be done with the greatest tolerance, so that heavenly assistance and divine confirmation may aid the friends.
Abdu’l-Baha’, Selections #213