OK.
Semantics. Here is Merriam-Webster's offering:
Main Entry: 1faith
Etymology: Middle English feith, from Anglo-French feid, fei, from Latin fides; akin to Latin fidere to trust — more at bide
Date: 13th century
1 a: allegiance to duty or a person : loyalty b (1): fidelity to one's promises (2): sincerity of intentions
2 a (1): belief and trust in and loyalty to God (2): belief in the traditional doctrines of a religion b (1): firm belief in something for which there is no proof (2): complete trust