Commentaries:
Faith comes by hearing the Word of God, the Bible. Unless the words spoken conform to it, they are merely doctrines of men and do not reflect the true God, for those that worship Him must worship in spirit and truth. This requires searching the Scripture as the Bereans did to verify if the preacher's words are true (Acts 17:11). One cannot know the true God unless one knows the truth of God.
Martin G. Collins
Basic Doctrines: Faith Toward God