You may be reading the Bible wrong. Pete Enns says the Bible itself shows a better way

[NeoGreen]

66. A better word would be Trust...

...and normally we, in the US as a class, have a trust in the rule of law and the equitable enforcement thereof.

People in general are losing trust in the rule of law due to the inequitable enforcement as exemplified by the kneeling protests and the rise of Black Lives Matter in response to the acquittal George Zimmerman and the police and court activities in Ferguson MO.

The reason for this inequitably can be traced back to racism and the concept of white supremacy, of which the latter is a direct derivative of the sons of ham theological doctrine. Another bad idea from religion.

Your use of faith (with a small "f" ) as a synonym for trust does not answer my question to Gui, which is about faith with a capital "F".

Gui's definition of 'Faith' is that it cannot be proven, which to me is an idea that then has no utility in-of-itself. Laws have demonstrable utility, as illustrated by your lament of their decay and apparent loss.