Devout
Part of speech: adjective
Definition: Devoted to religion or to religious feelings and duties; absorbed in religious exercises; given to devotion; pious; reverent; religious. Expressing devotion or piety; as, eyes devout; sighs devout; a devout posture. Warmly devoted; hearty; sincere; earnest; as, devout wishes for one's welfare.
Part of speech: noun
Definition: A devotee. A devotional composition, or part of a composition; devotion.
Example sentence: I come from a family of very devout, praying people. That idea of peace and love toward humanity shouldn't be nationalistic or denominational. It should be a chief concern for all mankind.
Sincere
Part of speech: adjective
Definition: earnest; meaning what one says or does; truthful.meant truly or earnestly.
Example sentence: To admit regret is to understand that we are fallible - that there are powers beyond us. To admit regret is to lose control not only of a difficult past but of the very story we tell about our present. To admit sincere and abiding regret is one of our greatest but unspoken contemporary sins.