“…religion is the teachings of the Lord God…”

Religion… is not a series of beliefs, a set of customs; religion is the teachings of the Lord God, teachings which constitute the very life of humankind, which urge high thoughts upon the mind, refine the character, and lay the groundwork for man’s everlasting honour. 
- 'Abdu'l-Bahá  (‘Selections from the Writings of 'Abdu'l-Bahá’)

The human soul’s “progress and success, in all the worlds of God” is dependent on the virtue of ”truthfulness”

Truthfulness is the foundation of all human virtues. Without truthfulness progress and success, in all the worlds of God, are impossible for any soul. When this holy attribute is established in man, all the divine qualities will also be acquired.  
- ‘Abdu’l-Baha  (Quoted by Shoghi Effendi, ‘The Advent of Divine Justice’)