G. Campbell Morgan 
The Perfect Ideal of Life [EPUB ebook] 

Jesus therefore said, When ye have lifted up the son of man, then shall ye know that I am he, and that I do nothing of myself, but as the Father taught me, I speak these things. And he that sent me is with me; he hath not left me alone; for I do always the things that are pleasing to him. As he spake these things, many believed on him.—John 8:28–30.
The Master, you will see, in this verse lays before us three things. First of all, He gives us the perfect ideal of human life in a short phrase, and that comes at the end, “the things that please him.” Those are the things that create perfect human life, living in the realm of which man realizes perfectly all the possibilities of his wondrous being—“the things that please him.” So I say, in this phrase, the Master reveals to us the perfect ideal of our lives. Then, in the second place, the Master lays claim—one of the most stupendous claims that He ever made—that He utterly, absolutely, realizes that ideal. He says, “I do always the things that please him.” And then, thirdly, we have the revelation of the secret by which He has been able to realize the ideal, to make the abstract concrete, to bring down the fair vision of divine purpose to the level of actual human life and experience, and the secret is declared in the opening words: “He that sent me is with me; my Father hath not left me alone.”
Cross Reach Publications