The message of Romans 14: 23 is clear: Whatever does not proceed from faith is sin.
This is an indictment to all natural virtues that do not flow from a heart humbly relying on the grace of God. This also refutes the idea that a person is righteous because he is not hurting anyone. In the outside, a person could look fine but since his depravity is internal, it is possible for people around him not to know how he has sunk deeper into sin.
Jojo Agot 