The Scriptures act as a guide for the people of God, better yet they are the teacher bringing those that our the Lord’s elect to Him. How much greater is it for the believer of the gospel to know that they have been given the Scriptures, so that they might know Him and live in obedience for him. Calvin writes on this issue in his institutes 1.6.1. saying,
Therefore, though the effulgence which is presented to every eye, both in the heavens and on the earth, leaves the ingratitude of man without excuse, since God, in order to bring the whole human race under the same condemnation, holds forth to all, without exception, a mirror of his Deity in his works, another and better help must be given to guide us properly to God as a Creator. Not in vain, therefore, has he added the light of his Word in order that he might make himself known unto salvation, and bestowed the privilege on those whom he was pleased to bring into nearer and more familiar relation to himself. For, seeing how the minds of men were carried to and fro, and found no certain resting-place, he chose the Jews for a peculiar people, and then hedged them in that they might not, like others, go astray. And not in vain does he, by the same means, retain us in his knowledge, since but for this, even those who, in comparison of others, seem to stand strong, would quickly fall away. For as the aged, or those whose sight is defective, when any books however fair, is set before them, though they perceive that there is something written are scarcely able to make out two consecutive words, but, when aided by glasses, begin to read distinctly, so Scripture, gathering together the impressions of Deity, which, till then, lay confused in our minds, dissipates the darkness, and shows us the true God clearly. God therefore bestows a gift of singular value, when, for the instruction of the Church, he employs not dumb teachers merely, but opens his own sacred mouth; when he not only proclaims that some God must be worshipped, but at the same time declares that He is the God to whom worship is due; when he not only teaches his elect to have respect to God, but manifests himself as the God to whom this respect should be paid.
The course which God followed towards his Church from the very first, was to supplement these common proofs by the addition of his Word, as a surer and more direct means of discovering himself. And there can be no doubt that it was by this help, Adam, Noah, Abraham, and the other patriarchs, attained to that familiar knowledge which, in a manner, distinguished them from unbelievers. I am not now speaking of the peculiar doctrines of faith by which they were elevated to the hope of eternal blessedness. It was necessary, in passing from death unto life, that they should know God, not only as a Creator, but as a Redeemer also; and both kinds of knowledge they certainly did obtain from the Word. In point of order, however, the knowledge first given was that which made them acquainted with the God by whom the world was made and is governed. To this first knowledge was afterwards added the more intimate knowledge which alone quickens dead souls, and by which God is known not only as the Creator of the worlds and the sole author and disposer of all events, but also as a Redeemer, in the person of the Mediator. But as the fall and the corruption of nature have not yet been considered, I now postpone the consideration of the remedy (for which, see Book 2 c. 6 &c). Let the reader then remember, that I am not now treating of the covenant by which God adopted the children of Abraham, or of that branch of doctrine by which, as founded in Christ, believers have, properly speaking, been in all ages separated from the profane heathen. I am only showing that it is necessary to apply to Scripture, in order to learn the sure marks which distinguish God, as the Creator of the world, from the whole herd of fictitious gods.D14 We shall afterward, in due course, consider the work of Redemption. In the meantime, though we shall adduce many passages from the New Testament, and some also from the Law and the Prophets, in which express mention is made of Christ, the only object will be to show that God, the Maker of the world, is manifested to us in Scripture, and his true character expounded, so as to save us from wandering up and down, as in a labyrinth, in search of some doubtful deity.