Righteousness is a person, not a condition reached after some esoteric performance. You are a slave to Christ. How? When He died you died. It’s a done deal. There is not threat in dying to sin left for any. But there is a threat of not meeting up to your function in your union with him.
You are His body. Does the hand tell the eye what to do, when, and how? Does the foot tell the brain what to think and why? So then, we as parts of His eternal expression are slaves to His declaration of your purpose in Him.
Romans Chapter 1 declares our existence as righteous just after declaring you are a slave to the one you yield your members to. Who owns you? You may have Christ bit does He have you? Are you willing to be all that Jesus in you is willing to be? Now that is the question.