In the books of Maccabees a foreign invader defiles the Temple which is a symbol of the faith of the people, and erects an ‘abomination of desolation’ in it. He orders the people, on pain of torture and death, to disown their beliefs and sacrifice to a false god instead.
On a rather smaller scale (!!), something similar seems to be taking place here. The setter is ordering us to replace an inelegant and offensive summary of traditional beliefs by another inelegant summary of an alternative which could not possibly be a basis for belief.
If I were submitting a solution I would defy this order and write something like FAITH CONFIDENCE in the middle row. I would not win the paltry prize but I might encourage the editors to watch out for this kind of invasion in future puzzles.