The source of sacred Scripture was not human research but divine revelation. This revelation comes from the Father of Light from whom the whole concept of fatherhood in heaven and on earth derives. From him, through Jesus Christ his Son, the Holy Spirit enters into us. Then, through the Holy Spirit who allots and apportions his gifts to each person as he wishes, we receive the gift of faith, and through faith Christ lives in our hearts. So we come to know Christ and this knowledge becomes the main source of a firm understanding of the truth of all sacred Scripture. It is impossible, therefore, for anyone to achieve this understanding unless he first receives the gift of faith in Christ. This faith is the foundation of the whole Bible, a lamp and a key to its understanding. As long as our earthly state keeps us from seeing the Lord, this same faith is the firm basis of all supernatural enlightenment, the light guiding us to it, and the doorway through which we enter upon it. What is more, the extent of our faith is the measure of the wisdom which God has given us. Thus, no one should overestimate his wisdom; instead, he should soberly make his assessment according to the extent of the faith which God has given him.