"Wherefore I also, after I heard of your faith in the Lord Jesus, and love unto all the saints, cease not to give thanks for you, making mention of you in my prayers; that the God of our Lord Jesus Christ, the Father of glory, may give unto you the spirit of wisdom and revelation in the knowledge of Him: the eyes of your understanding being enlightened; that ye may know what is the hope of His calling, and what the riches of the glory of His inheritance in the saints, and what is the exceeding greatness of His power to us-ward who believe, according to the working of His mighty power."--EPH. i. 15-19. If prayer for others is a barometer of our own spiritual life, we can realise what St. Paul felt was necessary for himself by his prayers for others. In Ephesians there are two petitions, and nothing fuller and deeper is found in any of the Apostle's writings. This Epistle represents the high-water mark of Christian privilege and possibility. 1. THE FOUNDATION. We see from verse 15 that his prayer is closely and definitely based on what precedes, and this introduces us to a feature not hitherto found. Up to now the prayers at the opening have been recorded almost immediately after the personal greetings. But here a long paragraph intervenes, and the prayer is not recorded until after fourteen verses full of spiritual teaching have been given. This section deserves special attention because it is the basis of the prayer. Let us review it briefly in order to obtain the true perspective of the petition. The key-thought is in verse 3, where the Apostle praises God for having actually blessed them "with all spiritual blessings in heavenly places in Christ." Then comes a wonderful statement of the way in which these blessings had become their own. (_a_) They had been eternally purposed in God the Father (vers. 3-6_a_); (_b_) they had been historically mediated through God the Son (vers. 6_b_-12); (_c_) they had been spiritually applied by God the Spirit (vers. 12-14). And in connection with each Person of the Sacred Trinity practically the same phrase occurs in this paragraph, showing that all the blessings were given in order that they might be used for the Divine glory: "To the praise of the glory of His grace" (ver. 6); "To the praise of His glory" (ver. 12); "To the praise of His glory" (ver. 14). Now it is upon this wealth of provision that the Apostle bases his prayer: "On this account." God had so wonderfully blessed them in Christ by His Spirit, and this fulness of blessing was so clearly intended to be used to the praise and glory of God that he could pray, as he does here, assured that the answer would come. God's revelation of Himself is invariably and inevitably the foundation of our prayers. Because of what He has done and is doing we can be sure of grace. Because His power has provided "all things that pertain to life and godliness" we can be certain of power for daily living. 2. THE APPEAL.