As for instance, that notion that there is a Christ, and that Christ is holy and gracious, is conveyed to the mind by the word of God: but the sense of the excellency of Christ by reason of that holiness and grace, is nevertheless immediately the work of the Holy Spirit.--I come now, III. To show _the truth of the doctrine_; that is, to show that there is such a thing as that spiritual light that has been described, thus immediately let into the mind by God. And here I would show briefly, that this doctrine is both _scriptural_ and _rational_. First, 'Tis _scriptural_. My text is not only full to the purpose, but 'tis a doctrine that the Scripture abounds in. We are there abundantly taught that the saints differ from the ungodly in this, that they have the knowledge of God, and a sight of God, and of Jesus Christ. I shall mention but few texts of many. 1 John iii. 6, "Whosoever sinneth hath not seen him, nor known him." 3 John 11, "He that doeth good is of God: but he that doeth evil hath not seen God." John xiv. 19, "The world seeth me no more; but ye see me." John xvii. 3, "And this is eternal life, that they might know thee the only true God, and Jesus Christ, whom thou hast sent." This knowledge, or sight of God and Christ, can't be a mere speculative knowledge; because it is spoken of as a seeing and knowing wherein they differ from the ungodly. And by these Scriptures it must not only be a different knowledge in degree and circumstances, and different in its effects; but it must be entirely different in nature and kind.