These facts enter into the common substance of our Christian belief and thought. As Christians, we never deny and never dispute them. We hold them in a measure unconsciously till the crises of life bring them into prominence. But they are inconceivably marvellous. As mere conceptions they are grand; as realized grounds of hope they are inexpressibly helpful. They are full of greatness and tenderness. Each of us may say to himself: "My soul, with all thy manifold infirmities and littlenesses, thou canst pray to the great God! Ay, thou canst come to Him as to an infinite Father!" Surely that is distinction and consolation enough. Comparatively few Christians, however, understand prayer as they should--either as a duty or as a privilege. With tens of thousands amongst them it is to a great extent an unappreciated boon. Even many devout Christians--anxious to use it to more effect--have their difficulties. I want to offer some help to such as these. The scope of prayer, unanswered prayer, delayed answers, etc., all are subjects of anxious questioning. I. Prayer, according to the teaching of Scripture and of experience, is a simple transaction of asking and receiving. It indirectly serves other ends, as we shall see shortly; but it is first of all, and all through, just what I have stated. We pray because we want; we pray in order to get what we want; and we pray with the feeling that we shall not get it unless we pray. There is no mystery in such a view as this. The transaction between the Christian and God, involved in prayer as thus described, is as natural, as simple, as well defined, and as easily understood, as the action of a child when it asks its parents for what it needs, and when its parents give what it needs in answer to the asking. The holy men of Scripture understood prayer in this way. Their prayers are full of simplicity, both as to their structure and their spirit. Abraham, Isaac, Jacob, Moses, Samuel, Elijah, all simply asked for such blessing as they felt they needed; asked for the sake of receiving, and feeling that the reception of what they wanted was dependent upon their asking. They unquestionably believed in an invisible Hand, and felt that the Heart that guided that Hand delighted to be trusted and appealed to in every, and for every, kind of human need.