We know Mando doesn't know any details about the Jedi. He also doesn't seem to understand that the Child's abilities come from something called the Force.
However, when he's hailed by the New Republic forces in season 2 episode 2, he says, "May the Force be with you," when trying to sign off.
How does he even know this phrase/that it's appropriate to say here? Is this just the motto of the New Republic? Do they even know what it means?