3. _The Spirit maketh intercession for us_. This is not a work done in us nor upon us, but is something done for us before the throne of God. We can not dogmatize as to _how_ the Spirit maketh intercession, but Paul says he does it "_according to the will of God_." This is a fact that appeals to _our faith_ and not to our Christian _experience_. It "can not be uttered." We can rest upon it and draw comfort from it as a child draws strength from its mother's breast. We can also draw comfort from the fact that Christ "ever liveth to make intercession for us," though we have no knowledge as to _how_ he does it. 4. Another work of the Spirit is to "_change us from glory to glory_." "But we all, with unveiled face, reflecting as a mirror the glory of the Lord, are transformed into the same image from glory to glory, even as from the Lord the Spirit" (2 Cor. 3:18). The figure used here by the apostle is taken from the process of mirror-making among the ancients. They hadn't the glass mirrors of our day, but a mirror of highly polished metal. A piece of coarse metal would be placed upon a stone and the workmen would begin to polish it; at first it made no reflection at all, but when polished for awhile would give a distorted and perverted reflection; but in the process of polishing, that reflection would grow clearer and clearer, when finally a man could behold his face in it perfectly reflected. And so with us. When taken into the great spiritual laboratory of Christianity we are blocks in the rough, but in the polishing process of the church and spiritual surroundings we begin to reflect the image of our Master, and when we have completed the work, we reflect him as perfectly as a human being can. Take, for illustration, the brothers Peter and John. At first they were called Boanerges, sons of thunder; they wanted to call down fire from heaven to destroy men who differed from them; but in the great laboratory of the Christian life they grew more and more Christlike, transformed by the Spirit of God, until at last we see the old apostle John at Ephesus, beautified and ennobled, sitting in his chair and lifting up trembling hands, and saying to the young disciples: "Little children, love one another, for love is of God." We see the transforming power of the spiritual atmosphere of the church and the Christian life upon human nature. Christian, with this illustration before you, how can you excuse yourself for keeping out of the spiritual atmosphere of God, for staying away from the communion and the spiritual convocation of God's people? Is it a burden and a duty to attend the house of God, or is it a pleasure gladly and joyfully anticipated? When you rise on the Lord's Day morning, do you say, "Must I go to church to-day?" or do you say: