Yet that they highest and most influential faith in the truth and authority of the Scriptures is the direct work of the Holy Spirit on our hearts. The Scriptures to the unregenerate man are like light to the blind. They may be felt as the rays of the sun are felt by the blind, but they cannot be fully seen. The Holy Spirit opens the blinded eyes and gives due sensibility to the diseased heart; and thus assurance comes with the evidence of spiritual experience. When first regenerated, he begins to set the Scriptures to the test of experience; and the more he advances, the more he proves them true, and the more he discovers of their limitless breadth and fulness, and their evidently designed adaptation to all human wants under all possible conditions (A.A. Hodge, The Confession of Faith, 36-37).