The grossest vice is not so thorough a barrier as self-satisfied self-righteousness. A thin slice of crystal will bar the entrance of air more effectually than many folds of stuff. IV. Faith in its practical effects. Rahab's story shows how living faith, like a living stream, will cut a channel for itself, and must needs flow out into the life. Hence James is right in using her as an example of how 'we are justified by works and not by faith only,' and the author of the _Epistle to the Hebrews_ is equally right in enrolling her in his great muster-roll of heroes and heroines of faith, and asserting that 'by faith' she 'perished not among them who believed not.' The one writer fastens on a later stage in her experience than does the other. James points to the rich fruit, the Epistle to the Hebrews goes deeper and lays bare the root from which the life rose to the clusters. The faith that saves is not a barren intellectual process, nor an idle trust in Christ's salvation, but a practical power. If genuine it _will_ mould and impel the life. So Rahab's faith led her, as ours, if real, will lead us, to break with old habits and associations contrary to itself. She ceased to be 'Rahab the harlot,' she forsook 'her own people and her father's house.' But her conquest of her old self was gradual. A lie was a strange kind of first-fruits of faith. Its true fruit takes time to flower and swell and come to ripeness and sweetness. So we should not expect old heads on young shoulders, nor wonder if people, lifted from the dunghills of the world, have some stench and rags of their old vices hanging about them still. That thought should moderate our expectations of the characters of converts from heathenism, or from the degraded classes at home. And it should be present to ourselves, when we find in ourselves sad recurrences of faults and sins that we know should have been cast out, and that we hoped had been so. This thought enhances our wondering gratitude for the divine long-suffering which bears with our slow progress. Our great Teacher never loses patience with His dull scholars. V. Faith as the means of deliverance and safety. From external evils it delivers us or not, as God may will. James was no less dear, and no less faithful, than John, though he was early 'slain with the sword,' and his brother died in extreme old age in Ephesus. Paul looked forward to being 'delivered from every evil work,' though he knew that the time of his being 'offered' was at hand, because the deliverance that he looked for was his being 'saved _into_ His heavenly kingdom.' That true deliverance is infallibly ours, if by faith we have made the Deliverer ours.