I am borrowing my title from Dr. Gavin Ortlund who presents a very informative YouTube video on the differences and similarities between Protestants and Catholics on the doctrine of justification. He notes some important differences such as Protestants hold to imputed righteousness which is forensic. Imputed righteousness transpires at the moment of faith in Christ and is a completed judicial act. Catholics advocate infused righteousness which is based on observing the sacraments throughout his/her life.