All this, it may be said, is ideal; but in what sense is it so? Not in the sense that it is fanciful or unreal; but in the sense that the divine law of our life, and the divine action upon our life, are represented in it. It is our calling as Christian people to be stedfast in Christ. Such stedfastness God is ever seeking to impart, and in striving to attain to it we can always appeal to Him for help. It is the opposite of instability; in a special sense it is the opposite of untrustworthiness. If we are letting God have His way with us in this respect, we are persons who can always be depended upon, and depended upon for conduct in keeping with the goodness and faithfulness of God, into which we have been confirmed by Him.
(2) From this general truth, with its application to all believers, the Apostle passes to another of more limited range. By including the Corinthians with himself in the first clause, he virtually excludes them in the second--"God anointed us." It is true that the New Testament speaks of an anointing which is common to all believers--"_Ye_ have an anointing from the Holy One; ye all know" (1 John ii. 20): but here, on the contrary, something special is meant. This can only be the consecration of Paul, and of those for whom he speaks, to the apostolic or evangelistic ministry. It is worth noticing that in the New Testament the act of anointing is never ascribed to any one but God. The only unction which qualifies for service in the Christian dispensation, or which confers dignity in the Christian community, is the unction from on high. "God anointed Jesus of Nazareth with the Holy Ghost and with power," and it is the participation in this great anointing which capacitates any one to work in the Gospel.[10] Paul undoubtedly claimed, in virtue of his divine call to apostleship, a peculiar authority in the Church; but we cannot define any peculiarity in his possession of the Spirit. The great gift which must be held in some sense by all Christians--"for if any man have not the Spirit of Christ, he is none of His"--was in him intensified, or specialised, for the work he had to do. But it is one Spirit in him and in us, and that is why we do not find the exercise of his authority alien or galling. It is authority divorced from "unction"--authority without this divine qualification--against which the Christian spirit rebels. And though "unction" cannot be defined; though no material guarantee can be given or taken for the possession of the Spirit; though a merely historical succession is, so far as this spiritual competence and dignity are concerned, a mere irrelevance; though, as Vinet said, we think of unction rather when it is absent than when it is present,--still, the thing itself is recognisable enough. It bears witness to itself, as light does; it carries its own authority, its own dignity, with it; it is the _ultima ratio_, the last court of appeal, in the Christian community. It may be that Paul is preparing already, by this reference to his commission, for the bolder assertion of his authority at a later stage.
(3) These two actions of God, however--the establishing of believers in Christ, which goes on continually (βεβαιῶν), and the consecration of Paul to the apostleship, which was accomplished once for all (χρίσας)--go back to prior actions, in which, again, all believers have an interest. They have a common basis in the great deeds of grace in which the Christian life began. God, he says, is He who also sealed us, and gave the earnest of the Spirit in our hearts.
"He also sealed us." It seems strange that so figurative a word should be used without a hint of explanation, and we must assume that it was so familiar in the Church that the right application could be taken for granted. The middle voice (σφραγισάμενος) makes it certain that the main idea is, "He marked us as His own." This is the sense in which the word is frequently used in the Book of Revelation: the servants of God are sealed on their foreheads, that they may be recognised as His. But what is the seal? Under the Old Testament, the mark which God set upon His people--the covenant sign by which they were identified as His--was circumcision. Under the New Testament, where everything carnal has passed away, and religious materialism is abolished, the sign is no longer in the body; we are sealed with the Holy Spirit of promise (Eph. i. 13 f.). But the past tense ("He _sealed_ us"), and its recurrence in Eph. i. 13 ("ye _were_ sealed"), suggest a very definite reference of this word, and beyond doubt it alludes to baptism. In the New Testament, baptism and the giving of the Holy Spirit are regularly connected with each other. Christians are born of water and of the Spirit. "Repent," is the earliest preaching of the Gospel (Acts ii. 38), "and be baptised every one of you, ... and ye shall receive the gift of the Holy Ghost." In early Christian writers the use of the word "seal" (σφραγίς) as a technical term for baptism is practically universal; and when we combine this practice with the New Testament usage in question, the inference is inevitable. God puts His _seal_ upon us, He _marks_ us as His own, when we are baptised.[11]