(1.) From the unspeakable wrong we do to ourselves if we neglect and refuse this invitation: "Wherefore do you spend money for that which is not bread, which will not yield you, no, not beggar's food, dry bread, when with me you may have wine and milk without money? Wherefore do you spend your labour and toil for that which will not be so much as dry bread to you, for it satisfies not?" See here, [1.] The vanity of the things of this world. They are not bread, not proper food for a soul; they afford no suitable nourishment or refreshment. Bread is the staff of the natural life, but it affords no support at all to the spiritual life. All the wealth and pleasure in the world will not make one meal's meat for a soul. Eternal truth and eternal good are the only food for a rational and immortal soul, the life of which consists in reconciliation and conformity to God, and in union and communion with him, which the things of the world will not at all befriend. They satisfy not; they yield not any solid comfort and content to the soul, nor enable it to say, "Now I have what I would have." Nay, they do not satisfy even the appetites of the body. The more men have the more they would have, Eccl. i. 8. Haman was unsatisfied in the midst of his abundance. They flatter, but they do not fill; they please for a while, like the dream of a hungry man, who awakes and his soul is empty. They soon surfeit, but they never satisfy; they cloy a man, but do not content him, or make him truly easy. It is all vanity and vexation. [2.] The folly of the children of this world. They spend their money and labour for these uncertain unsatisfying things. Rich people live by their money, poor people by their labour; but both mistake their truest interest, while the one is trading, the other toiling, for the world, both promising themselves satisfaction and happiness in it, but both miserably disappointed. God vouchsafes compassionately to reason with them: "Wherefore do you thus act against your own interest? Why do you suffer yourselves to be thus imposed upon?" Let us reason with ourselves, and let the result of these reasonings be a holy resolution not to labour for the meat that perishes, but for that which endures to everlasting life, John vi. 27. Let all the disappointments we meet with in the world help to drive us to Christ, and lead us to seek for satisfaction in him only. This is the way to make sure which will be made sure.