Assured faith is a strong belief in something with certainty and conviction, but there are many different words and phrases that can convey this sense of confidence in one's beliefs. Some synonyms for assured faith might include "unwavering trust," "unshakable conviction," or "complete confidence." Other options could include "steadfast belief," "unquestioning faith," or "unwavering devotion." Regardless of the specific terminology used, each of these phrases conveys a sense of steadfast belief, trust, and conviction in something that is deeply meaningful and important to the individual holding it.