My object in adopting this arrangement is that the truths should be at one time apparent and at another time concealed. Thus we shall not be in opposition to the Divine Will (from which it is wrong to deviate) which has withheld from the multitude the truths required for the knowledge of God, according to the words, "The secret of the Lord is with them that fear Him." (Psalm 25:14)

Guide for the Perplexed (c. 1190) - Introduction