Romans 2:27

2:27 And will not the physically uncircumcised man who keeps the law judge you who, despite the written code and circumcision, transgress the law?

Romans 5:12

The Amplification of Justification

5:12 So then, just as sin entered the world through one man and death through sin, and so death spread to all people because all sinned –

Romans 14:23

14:23 But the man who doubts is condemned if he eats, because he does not do so from faith, and whatever is not from faith is sin.