(quote from RealReality.org/Real_Faith_and_Reason_Vol_2_-_Scientia.pdf)

Divine Revelation and Certainty

We’ve established that faith is divine certainty. And yet God tells us to walk from faith to faith. That implies a faith that progresses to higher and deeper levels in Christ. That means we go from one level of faith to a higher level. From this level, we proceed higher by grace. And grace is through faith. As we yield, the Holy Spirit changes us. And we advance to an even higher level of faith. We proceed because the Holy Spirit uses this method to transfigure us as the Holy Spirit purifies Christ in our innermost minds. Purification is holiness. To put it another way, Christ becomes more fully formed in us as the polluted, natural, carnal mind gradually dies away. And as Christ is formed and the carnal mind dies, our thinking becomes clearer, and the scope of certainty we know by faith is wider and more encompassing.

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