Two conclusions can stand together:
1. Genuine faith and genuine religious submission cannot be separated in the technical sense.
2. In particular contexts, “Islam” emphasizes outward profession while “faith” highlights inward belief.
This allows 49:14, the Gabriel hadith, and 51:35–36 to retain their distinctive meanings instead of forcing every occurrence into one undifferentiated definition.
For an identifiable person, the outward status used in legal dealings must be distinguished from what is known only to God about the person's inward and ultimate condition.