We now enter upon a new section of our marvelous book. The discourses contained in the first eleven chapters having established the all-important principle of obedience, we now come to the practical application of the principle to the habits and ways of the people when settled in possession of the land. "These are the statutes and judgments which ye shall observe to do in the land which the Lord God of thy fathers giveth thee to possess it, all the days that ye live upon the earth." It is of the utmost moral importance that the heart and conscience should be brought into their true attitude in reference to divine authority, irrespective altogether of any question as to details. These will find their due place when once the heart is taught to bow down, in complete and absolute submission, to the supreme authority of the Word of God. Now, as we have seen in our studies on the first eleven chapters, the lawgiver labors, most earnestly and faithfully, to lead the heart of Israel into this all-essential condition. He felt, to speak after the manner of men, it was of no use entering upon practical details until the grand foundation-principle of all morality was fully established in the very deepest depths of the soul. The principle is this (let us Christians apply our hearts to it): It is man's bounden duty to bow implicitly to the authority of the Word of God. It matters not, in the smallest degree, what that Word may enjoin, or whether we can see the reason of this, that, or the other institution. The one grand, all-important, and conclusive point is this: Has God spoken? If He has, that is quite enough. There is no room, no need, for any further question. Until this point is fully established, or rather until the heart is brought directly under its full moral force, we are not in a condition to enter upon details. If self-will be allowed to operate, if blind reason be permitted to speak, the heart will send up its endless questionings; as each divine institution is laid before us, some fresh difficulty will present itself as a stumbling-block in the path of simple obedience. What! it may be said, are we not to use our reason? If not, to what end was it given? To this we have a twofold reply. In the first place, our reason is not as it was when God gave it. We have to remember that sin has come in; man is a fallen creature; his reason, his judgment, his understanding--his whole moral being is a complete wreck; and moreover, it was the neglect of the Word of God that caused all this wreck and ruin. And then, in the second place, we must bear in mind that if reason were in a sound condition, it would prove its soundness by bowing to the Word of God. But it is not sound; it is blind, and utterly perverted; it is not to be trusted for a moment in things spiritual, divine, or heavenly.