The Holy Spirit A B Simpson Chapter 6 – The Comforter Not only does He teach us, but He quickens our intellect to remember and to learn. He is the Author and the Illuminator of the mind, and He is the Spirit of suggestion. He knows how to bring back forgotten truths in the moment of need. He knows how to suggest the promise in the time of depression. He knows how to say, “It is written,” and put into our hand the sword of the Spirit, when the adversary’s wiles are trying and perplexing us.