The word of God, accompanied with those additional helps before mentioned, for the churches understanding the sense thereof, was always, indeed, sufficient to lead men into the knowledge of divine truth; but the canon being compleated, it is so now in an eminent degree; and it is agreeable to the divine perfections that such a rule should be given; for since salvation could not be attained, nor God glorified, without a discovery of those means, which are conducive thereto, it is not consistent with his wisdom and goodness that we should be left at the utmost uncertainty as to this matter, and, at the same time, rendered incapable of the highest privileges which attend instituted worship. Can we suppose that, when all other things necessary to salvation are adjusted, and many insuperable difficulties surmounted, and an invitation given to come and partake of it, that God should lay such a bar in our way, that it should be impossible for us to attain it, as being without a sufficient rule? And since none but God can give us such an one, it is inconsistent with his sovereignty to leave it to men, to prescribe what is acceptable in his sight. They may, indeed, give laws, and thereby oblige their subjects to obedience; but these must be such as are within their own sphere; their power does not extend itself to religious matters, so that our faith and duty to God should depend upon their will; for this would be a bold presumption, and extending their authority and influence beyond due bounds; therefore since a rule of faith is necessary, we must conclude that God has given us such an one; and it must certainly be worthy of himself, and therefore perfect, and every way sufficient to answer the end thereof. That it is so, farther appears from the event, or from the happy consequences of our obedience to it; from that peace, joy, and holiness, which believers are made partakers of, while steadfastly adhering to this rule: thus it is said, that _through comfort of the scriptures they have hope_, Rom. xv. 4. and that hereby _the man of God is made wise to salvation, and perfect, thoroughly furnished unto all good works_, 2 Tim. iii. 15, 17. The perfection of the law is demonstrated, by the Psalmist, by its effects, in that it _converts the soul, makes wise the simple, rejoices the heart, enlightens the eyes_, Psal. xix. 7, 8.