Samuel is a very good type and illustration of the matter of spiritual growth, and in him we can quite easily trace the principles of spiritual increase which we find everywhere in the Word of God. This is not just taking an Old Testament illustration. We must remember that the Holy Spirit, who directed the writing of all the Scriptures, had present in His mind those eternal principles of God which are the same in all ages, at all times, because they are timeless and eternal. The same Spirit who directed the writing of the New Testament, directed the writing of these Old Testament Scriptures on the same principles, so that we can easily find in the life of Samuel and in the life of any other great servant of God, the things which come out in a spiritual way in the later parts of the Bible.