The joys and consolation of fellowship can only be the result of communion with the saints. In spiritual things, as in ordinary affairs, it is the countenance of his friend which quickens and brightens the tired toiler as "iron sharpeneth iron." And though it is true that God can, and often does, wonderfully teach and inspire His people without the direct aid of any human agent, it is equally true that He generally does so by the employment of His word, which He has revealed to men, or by the recalling of some message which has already been received into the mind and heart. Nor does this in the least detract from our absolute dependence upon Him. The man who crosses the Atlantic in a steamship is no less dependent on the sea because he employs the vessel for his journey. We are no less dependent upon the earth for our sustenance because we only partake of the wheat after it has been ground into flour and made into bread. And so, we are no less dependent upon God because He has been pleased to employ various humble and simple instruments to save, and teach, and guide us. After full allowance has been made for the power and influence of intervening agencies, it is in Him we really live, and move, and have our being. But I return to my first word. There is one kind of service open to all, irrespective of circumstances and gifts, which can be rendered to God without the intervention of anyone. And this we may truly call self-denial. Much that quite properly comes under that description need never--probably will never--be known to anyone but God. It may be a holy sacrament indeed, kept between the soul and its Lord alone. I. _There is the Denial of all that remains of Evil in us._ How many sincere souls, when they look into their own hearts, find, to their horror, evil in them where they least expected it; find them part stone, when they should be all flesh; find them bound to earth and the love of earthly things, when they should be free from the world and the love of the world; find them occupied, alas! so often with idols and heart-lusts, when God alone ought to rule and reign. Here is a sphere for self-denial. Here is a service to be rendered to God, which will be very acceptable to Him, and which you alone can perform. And if you would thus deny yourself, then examine yourself. Study the evils of your own nature. Recognise sin. Call it by its right name when you speak of it in the solitude of your own heart. If there are the remains of the deadly poison in you, say so to God, and keep on saying so with a holy importunity. "Confess your sins." Attack them as the farmer attacks the poison-plant amongst his crops, or the worms and flies which will blight his harvest, and which, unless he can ruin them, he knows full well will ruin him. That is the "_perfect self-denial_"--to cut off the right hand, and to pluck out and cast away what is dear as the right eye, if it offend against the law of purity and truth and love.