Faith can be considered as belief in divine truth. It has two aspects: belief and action.  Faith is personal and is an individual responsibility.

Bahá’u’lláh wrote:

“The essence of faith is fewness of words and abundance of deeds; he whose words exceed his deeds, know verily his death is better than his life.”
(Tablets of Bahá’u’lláh, p. 156)

“…True belief in God and recognition of Him cannot be complete save by acceptance of that which He hath revealed and by observance of whatsoever hath been decreed by Him and set down in the Book by the Pen of Glory.”
(Tablets of Bahá’u’lláh, p. 50)

“…Suffer not yourselves to be wrapt in the dense veils of your selfish desires, inasmuch as I have perfected in every one of you My creation, so that the excellence of My handiwork may be fully revealed unto men. It follows, therefore, that every man hath been, and will continue to be, able of himself to appreciate the Beauty of God, the Glorified. Had he not been endowed with such a capacity, how could he be called to account for his failure? If, in the Day when all the peoples of the earth will be gathered together, any man should, whilst standing in the presence of God, be asked: “Wherefore hast thou disbelieved in My Beauty and turned away from My Self,” and if such a man should reply and say: “Inasmuch as all men have erred, and none hath been found willing to turn his face to the Truth, I, too, following their example, have grievously failed to recognize the Beauty of the Eternal,” such a plea will, assuredly, be rejected.  For the faith of no man can be conditioned by any one except himself.”
(Gleanings from the Writings of Bahá’u’lláh, p. 143)