Every document is to be explained according to its nature and design. As the law of God is spiritual, and the intention of giving it was the promotion of the divine glory, it becomes a matter of great importance that we rightly understand it. An error here may be fatal. By rules of interpretation, let no one understand so much a reference to the mere words of the law as to the general scope of the whole; and yet the sense, of course, is not to be learned without a correct grammatical construction of the words in which it is delivered. There are two capital errors respecting the law. One maintains that we are justified by it. The other asserts that we are under no obligation to obey it. The last of these will be considered hereafter. The first now claims our attention. The following things are made remarkably clear in God's word.