As if great faith can be grasped without yielding to God, consecrating oneself to service and seeking sanctification so that Christ might find more room to live more fully in and through one.Faith is the key to power, not holiness.
Those people who still had great faith after a lot of personal falls didn't find that faith to begin with in a state of living in and pursuing ungodliness. That kind of faith might be maintained by God's mercy but that is something different.