He asked for spiritual _strength_: "That their hearts might be comforted." St. Paul always went to the very centre and core of things, and so we find him constantly praying with reference to the "hearts" of these Colossian Christians. Since, as we have seen, the "heart" in Scripture is the centre of our moral and spiritual being, if the heart is right, all will be right, for "out of it are the issues of life." He prays that their "hearts" might be comforted--that is, in the full sense of the word, encouraged, exhorted, strengthened. "Comfort" includes the three elements of strength, courage, and consolation. We must be strong, brave, and cheery. This is the full meaning of the term "Comforter" as applied to the Holy Spirit. He is the One Who gives strength, courage, and consolation. This, too, is the true meaning of the familiar phrase of the English Prayer Book, "Comfortable words"--words that minister strength, fortitude, and cheer. The fact that this thought of "hearts comforted" was often in the mind and on the lips of the Apostle shows the importance he attached to it (2 Thess. ii. 17; Eph. vi. 22). With hearts made strong, courageous, and cheerful, Christians can face anything; while with hearts that remain weak, fearful, and sad the Christian life is a prey to all the temptations of the Evil One. It is exactly similar with a Church or a congregation of Christians, for one of the supreme needs in any community is comforted hearts--the centres of life made strong, courageous, and happy. Then it is that Churches live, grow, extend, and witness for Christ in the demonstration of the Holy Spirit the "Comforter." He asked for spiritual _unity_: "Being knit together in love," or, quite literally, "having been compacted in love." He prayed that these Christians might be kept together, knit together, joined together in a spirit of love. Solitary Christians are always weak Christians, for "union is strength." If Christians are not knit together, the cause of Christ must necessarily suffer, for through the severances caused by division the enemy will keep thrusting his darts. That is why the Apostle elsewhere urges them "earnestly to strive to keep the unity of the Spirit" (Eph. iv. 3). One of the greatest powers that Satan wields to-day is due to the disunion among the people of God. It is true of the Christian home, congregation, and denomination. The wedge of discord is one of the enemy's most powerful weapons. On the other hand, where the brethren dwell together in unity, the Lord commands His blessing. In almost every Epistle the Apostle emphasises unity, and we can readily understand the reason.