When people do these Bitcoin physical mockups, why do they always use some variation of the motto “In God We Trust” (e.g. “In Cryptocurrency We Trust”, “In Bitcoin We Trust”, “In Satoshi We Trust”, etc.)? Why don't people come up with something better? The motto is very specific to US currency, and as far as I know, the main ideology behind Bitcoin is to ditch fiat currency (which includes the US dollar). Also, the motto talks about faith in a deity, and I don't think we should blindly have faith in Bitcoin (we however, can trust it works by analyzing its source code).
On the other hand, there are other mottos I like, like “Vires in Numeris”, that had no reference to other currencies.
Bitcoin is open source and decentralized so there isn't one motto and should never be one motto.
Trust doesn't necessarily involve any faith. I have no use for faith in my life. I trust Bitcoin because I understand the mathematics, the cryptography , the source code and the incentive structure which benefits good behavior over bad behavior. This trust isn't immutable and can be broken in light of new evidence.