14 We know that the law is spiritual; but I am unspiritual, sold as a slave to sin.

Read Romans 7:14 Using Other Translations

For we know that the law is spiritual: but I am carnal, sold under sin.
For we know that the law is spiritual, but I am of the flesh, sold under sin.
So the trouble is not with the law, for it is spiritual and good. The trouble is with me, for I am all too human, a slave to sin.