If then you are asked, what is it to lay up treasure in heaven, I think you may answer with great security: To lay up treasure in heaven is to do acts which promote, or belong to, the kingdom of God; and what our Lord assures us of is that any act of our hands, any thought of our heart, any word of our lips, which promotes the divine kingdom by the ordering whether of our own life or of the world outside――all such activity, though it may seem for the moment to be lost, is really stored up in the divine treasure-house; and when the heavenly city, the New Jerusalem, shall at last appear, that honest effort of ours, which seemed so ineffectual, shall be found to be a brick built into that eternal and celestial fabric. And our Lord gives the answer to a difficulty continually perplexing honest Christians――How am I to learn to _love_ God? I want to do my duty, but I do not feel as if I loved God. Our Lord gives the answer, “Where your treasure is, there will your heart be also.” Act for God: do and say the things that He wills: direct your thoughts and intentions God-ward; and depend upon it, in the slow process of nature all that belongs to you――your instincts, your intelligence, your affections, your feelings――will gradually follow along the line of your action. Act for God: you are already _showing_ love to Him and you will learn to _feel_ it. “The lamp of the body is the eye: if therefore thine eye be single, thy whole body shall be full of light. But if thine eye be evil, thy whole body shall be full of darkness. If therefore the light that is in thee be darkness how great is the darkness! No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to one, and despise the other. Ye cannot serve God and mammon.” The question of vital importance is therefore simply this: are we single-minded in seeking God? Single-mindedness is what gives clearness and force to life. Put God clearly and simply first in great things and in small. Then your life will be full of light, full of power. And, in fact, you must put God first, or nowhere. Examine any man’s life, of what sort it is. Cross-question it. You will find at last that one motive is dominant. Either, at the last push, he will do God’s will, or he will do that by which he thinks to serve his interests in the world. Now, what a man does at the last analysis or when pushed into a corner, that is what reveals his real motive. The motive on which he then acts is his only real master-principle. There can be only one such in a life. At the bottom it is either God which rules a life or mammon, i.e. money. Thus you must put God first, or, in fact, you are putting Him nowhere; if He is not first, then He can be no more than the superficial decoration of a life really devoted to something else.