All Christians are 'saints.' They are consecrated and set apart for God's service, and in the degree in which they are conscious of and live out that consecration, they are pure.
So their name, or rather the great fact which their name implies, should be ever before them, a stimulus and a law. We are bound to remember that we are consecrated, separated as God's possession, and that therefore purity is indispensable. The continual consciousness of this relation and its resulting obligations would make us recoil from impurity as instinctively as the sensitive plant shuts up its little green fingers when anything touches it; or as the wearer of a white robe will draw it up high above the mud on a filthy pavement. Walk 'worthily of saints' is another way of saying, Be true to your own best selves. Work up to the highest ideal of your character. That is far more wholesome than to be always looking at our faults and failures, which depress and tempt us to think that the actual is the measure of the possible, and the past or present of the future. There is no fear of self-conceit or of a mistaken estimate of ourselves. The more clearly we keep our best and deepest self before our consciousness, the more shall we learn a rigid judgment of the miserable contradictions to it in our daily outward life, and even in our thoughts and desires. It is a wholesome exhortation, when it follows these others of which we have been speaking (and not else), which bids Christians remember that they are saints and live up to their name.
A Christian's inward and deepest self is better than his outward life. We have all convictions in our inmost hearts which we do not work out, and beliefs that do not influence us as we know they ought to do, and sometimes wish that they did. By our own fault our lives but imperfectly show their real inmost principle. Friction always wastes power before motion is produced.
So then, we may well gather together all our duties in this final form of the all-comprehensive law, and say to ourselves, 'Walk worthily of saints.' Be true to your name, to your best selves, to your deepest selves. Be true to your separation for God's service, and to the purity which comes from it. Be true to the life which God has implanted in you. That life may be very feeble and covered by a great deal of rubbish, but it is divine. Let it work, let it out. Do not disgrace your name.
These are the phases of the law of Christian conduct. They reach far, they fit close, they penetrate deeper than the needle points of minute regulations. If you will live in a manner corresponding to the character, and worthy of the love of God, as revealed in Christ, and in conformity with the principles that are enthroned upon His Cross, and in obedience to the destiny held forth in your high calling, and in faithfulness to the name that He Himself has impressed upon you, then your righteousness shall exceed the righteousness of the painful and punctilious pharisaical obedience to outward commands, and all things lovely and of good report will spring to life in your hearts and bear fruit in your lives.
One last word--all these exhortations go on the understanding that you are a Christian, that you have taken Christ for your Saviour, and are resting upon Him, and recognising in Him the revelation of God, and in His Cross the foundation of your hope; that you have listened to, and yielded to, the divine summons, and that you have a right to be called a saint. Is that presumption true about you, my friend? If it is not, Christianity thinks that it is of no use wasting time talking to you about conduct.