The Apostle is always true to the order of thought here indicated. Faith saves from first to last. The present righteousness and future glory of the sons of God alike have their source in faith. The act of reliance by which the initial justification of the sinner was attained, now becomes the habit of the soul, the channel by which its life is fed, rooting itself ever more deeply into Christ and absorbing more completely the virtue of His death and heavenly life. Faith has its great ventures; it has also its seasons of endurance, its moods of quiet expectancy, its unweariable patience. It can wait as well as work. It rests upon the past, seeing in Christ crucified its "author;" then it looks on to the future, and claims Christ glorified for its "finisher." So faith prompts her sister Hope and points her to "the glory that shall be revealed." If faith fails, hope quickly dies. Unbelief is the mother of despair. "Of faith," the Apostle says, "we look out!" A second condition, inseparable from the first, marks the hope proper to the Christian righteousness. It is sustained "by the Spirit." The connection of faith and hope respectively with the gift of the Holy Spirit is marked very clearly by Paul in Eph. i. 13, 14: "Having believed, you were sealed with the Holy Spirit, who is _the earnest of our inheritance_." The Holy Spirit seals the sons of God--"sons, then heirs" (ch. iv. 6, 7; Rom. viii. 15-17). This stamps on Christian hope a _spiritual_ character. The conception which we form of it, the means by which it is pursued, the temper and attitude in which it is expected, are determined by the Holy Spirit who inspires it. This pure and celestial hope is therefore utterly removed from the selfish ambitions and the sensuous methods that distinguished the Judaistic movement (ch. iv. 3, 9; vi. 12-14). "Men of worldly, low design" like Paul's opponents in Galatia, had no right to entertain "the hope of righteousness." These matters are spiritually discerned; they are "the things of the Spirit, the things which God hath prepared for them that love Him" (1 Cor. ii. 9-14). If faith and hope are in sight, _love_ cannot be far off. In the next verse it comes to claim its place beside the other two: "faith working through love." And so the blessed trio is complete, _Fides, amor, spes: summa Christianismi_ (Bengel). Faith waits, but it also _works_;[133] and love is its working energy. Love gives faith hands and feet; hope lends it wings. Love is the fire at its heart, the life-blood coursing in its veins; hope the light that gleams and dances in its eyes. Looking back to the Christ that hath been manifested, faith kindles into a boundless love; looking onward to the Christ that shall be revealed, it rises into an exultant hope.