But of all words "spirit" is the vaguest; and if we had nothing but the word itself to guide us, we should either lapse into superstitious ideas about the virtue of the sacrament, or into fanatical ideas about incommunicable inward experiences in which God marked us for His own. The New Testament provides us with a more excellent way than either; it gives the word "spirit" a rich but definite moral content; it compels us, if we say we have been sealed with the Spirit, and claimed by God as His, to exhibit the distinguishing features of those who are His. "The Lord is the Spirit" (2 Cor. iii. 17). To be sealed with the Spirit is to bear, in however imperfect a degree, in however inconspicuous a style, the image of the heavenly man, the likeness of Jesus Christ. There are many passages in his Epistles in which St. Paul enlarges on the work of the Spirit in the soul; all the various dispositions which it creates, all the fruits of the Spirit, may be conceived as different parts of the impression made by the seal. We must think of these in detail, if we wish to give the word its meaning; we must think of them in contrast with the unspiritual nature, if we wish to give it any edge. Once, say, we walked in the lusts of the flesh: has Christ redeemed us, and set on our souls and our bodies the seal of His purity? Once we were hot and passionate, given to angry words and hasty, intemperate deeds: are we sealed now with the meekness and gentleness of Jesus? Once we were grasping and covetous, even to the verge of dishonesty; we could not let money pass us, and we could not part with it: have we been sealed with the liberality of Him who says, "It is more blessed to give than to receive"? Once a wrong rankled in our hearts; the sun went down upon our wrath, not once or twice, but a thousand times, and found it as implacable as ever: is that deep brand of vindictiveness effaced now, and in its stead imprinted deep the Cross of Christ, where He loved us, and gave Himself for us, and prayed, "Father, forgive them"? Once our conversation was corrupt; it had a taint in it; it startled and betrayed the innocent; it was vile and foolish and unseemly: are these things of the past now? and has Christ set upon our lips the seal of His own grace and truth, of His own purity and love, so that every word we speak is good, and brings blessing to those who hear us? These things, and such as these, are the seal of the Spirit. They are Christ in us. They are the stamp which God sets upon men when He exhibits them as His own.