Fully Persuaded

Romans 4:21,22

And being fully persuaded that, what he had promised, he was able also to perform. And therefore it was imputed to him for righteousness.

When & why was righteousness imputed?
All of chapter 4 is Abraham being fully persuaded, not wavering I’m faith.

Paul conferred not with flesh and blood or went to the apostles before him. Why? Fully persuaded. This is the effect, nature and diffusion of the quickened word in our spirit by the Holy Spirit. FULL persuasion. Otherwise, righteousness cannot impute if I did not receive that form of doctrine in my heart. This of course is by the awesome design of the Creator. Hallelujah! Glory!