So you don't think that you are "by no means certain that God exists" is in conflict with the First Commandment?

No, it doesn't say anything about certainty. Why do you think it is in conflict? You haven't justified that, merely asserted it.

Faith is, indeed, a flexible thing.

First y'all bitch that it's too inflexible, now that it's too flexible. Why don't you all go away in a corner and get your set of demands lined up, then come back to the table?