Righteousness is revealed from faith to faith. The just, those who live in Christ's justification, shall live by faith. The wrath of God is revealed against anything that is not from faith to faith. There are many who hold the truth in unrighteousness for they hold the truth about Christ without the righteousness of faith which reveals the righteousness of God. They hold doctrine or they attain knowledge, but they do not experience faith. Truth is established in their intellect, and they live in the letter of what they perceive to be true in their own knowledge, and yet they are without the expression of the life of the Spirit. They cannot express what they hold, and they live a life inhibited by their own inability to execute faith in Christ. They may even hold the truth of faith without exercising it in action.
We can believe the Word and trust in Christ, have a faith based on the Word which goes beyond the norm of reason, and place this faith in a Person. Or, we can have a life where we talk Christianity and go on in human coexistence in religious affiliation yet remain sterile because we hold the truth in unrighteousness. The truth may be held in knowledge, but faith not exercised to produce life in that truth to express God's grace. In God's righteousness, we grow from faith to faith. Those who hold the truth frustrate grace because they remain stagnant, never entering into potentials or glorious realities. Let faith be released and God will be revealed.