All what I have seen here offered as arguments or plausibility considerations for the existence of a god starts from the assumption that there is at least one god (I have never understood, BTW, why the existence of a single god, instead of many, should follow from the design argument).

Plausible to those sharing the assumption, unplausible for others.

I think it is better when what I have learned in religious instruction when I was young is followed: Basically, it is a decision by/of faith and nothing else, a strong personal belief without, but also not in need of, the last bit of evidence which would make an intersubjectively valid certainty out of a personal faith.

Wolfgang