When the Apostle Paul said that the righteousness of GOD is revealed in the Gospel of Jesus Christ from Faith to Faith, he wasn’t saying that righteousness of GOD is revealed in the Gospel from a small faith to a big faith, neither was he referring to the movement or growth of saints from the one having a little faith to the one having a great faith. What he actually meant was that the starting requirement for the revelation of the righteousness of GOD is faith and if that be, same is the final requirement. If our starting material is Faith, the final material is still Faith. The only thing is that, between this “Faith to Faith” we are talking about, exist a man in Christ experiencing different growth facets in Christ. Faith in itself doesn’t grow, but a man in Christ can grow in Faith. Do you know why? Even the faith of the man in Christ is a gift to him, and not his own from start to finish. Hence, since this faith is of GOD, then it is sole dependence on GOD through obedience to GOD’s word, and GOD’s will that is even revealed via His word that can keep this faith (1 Thessalonians 5:24).