To believe in something with no known proof/evidence. Dinie Slothouber had faith that Mitch Longley would respond to her one day. Carol Schultz had faith that Jim Harrington would recover. The Echelon Towers had faith that they would pass inspection with flying colours.
He is an adherent of the Roman Catholic faith.
He professed his faith in God.
The Islamic faith believes in Allah.
"His loyalty is a testament to his good faith and friendship." This is a sentence that uses the term "testament" properly.
Jesus Christ is the kernel figure of the Catholic faith.
Pagan is one of non Judeo-christian faith.
If you work hard and have faith in yourself there is no limit to what you can become.
A Christian faith of protestant sect is also called Cavinism.
it means a kind action, or an action of good faith.
Within the Buddhist faith, the cycle of incarnation still continues today.
Any limitation you have can be overcome, if only you have faith and persistence to strive for it.
I think the word to use would be renouncement. "I cannot except your renouncement of the catholic faith."