'One Lord, one faith, one baptism.'--Eph. iv. 5.
The thought of the unity of the Church is very prominent in this epistle. It is difficult for us, amidst our present divisions, to realise how strange and wonderful it then was that a bond should have been found which drew together men of all nations, ranks, and characters. Pharisee and philosopher, high-born women and slaves, Roman patricians and gladiators, Asiatic Greeks and Syrian Jews forgot their feuds and sat together as one in Christ. It is no wonder that Paul in this letter dwells so long and earnestly on that strange fact. He is exhorting here to a unity of spirit corresponding to it, and he names a seven-fold oneness--one body and one spirit, one hope, one Lord, one faith, one baptism, one God and Father of all. The outward institution of the Church, as a manifest visible fact, comes first in the catalogue. One Father is last, and between these there lie the mention of the one Spirit and the one Lord. The 'body' is the Church. 'Spirit, Lord, God,' are the triune divine personality. Hope and faith are human acts by which men are joined to God; Baptism is the visible symbol of their incorporation into the one body. These three clauses of our text may be considered as substantially including all the members of the series. We deal with them quite simply now, and consider them in the order in which they stand here.
I. The one Lord.
The deep foundation of Christian unity is laid in the divine Christ. Here, as generally in the New Testament, the name 'Lord' designates Christ in His authority as ruler of men and in His divinity as Incarnation of God. It would not be going too far to suggest that we have in the name, standing as it does, for the most part, in majestic simplicity, a reference to the Old Testament name of Jehovah, which in the Greek translation familiar to Paul is generally rendered by this same word. Nor can we ignore the fact that in this great catalogue of the Christian unities the Lord stands in the centre of the three personalities named, and is regarded as being at once the source of the Spirit and the manifestation of the Father. The place which this name occupies in relation to the Faith which is next named suggests that the living personal Christ is the true uniting principle amongst men. The one body realises its oneness in its common relation to the one Lord. It is one, not because of identity in doctrine, not because of any of the bonds which hold men together in human associations, precious and sacred as many of these are, but 'we being many are one bread, for we are all partakers of that one bread.' The magnet draws all the particles to itself and holds them in a mysterious unity.
II. One faith.
The former clause set forth in one great name all the objective elements of the Church's oneness; this clause sets forth, with equally all-comprehending simplicity, the subjective element which makes a Christian. The one Lord, in the fulness of His nature and the perfectness of His work, is the all-inclusive object of faith. He, in His own living person, and not any dogmas about Him, is regarded as the strong support round which the tendrils of faith cling and twine and grow. True, He is made known to us as possessing certain attributes and as doing certain things which, when stated in words, become doctrines, and a Christ without these will never be the object of faith. The antithesis which is so often drawn between Christ's person and Christian doctrines is by no means sound, though the warning not to substitute the latter for the former is only too necessary at all times.
The subjective act which lays hold of Christ is faith, which in our text has its usual meaning of saving trust, and is entirely misconceived if it is taken, as it sometimes is, to mean the whole body of beliefs which make up the Christian creed. That which unites us to Jesus Christ is an infinitely deeper thing than the acceptance of any creed. A man may believe thirty-nine or thirty-nine hundred articles without having any real or vital connection with the one Lord. The faith which saves is the outgoing of the whole self towards Christ. In it the understanding, the emotions, and the will are all in action. The New Testament _faith_ is absolutely identical with the Old Testament _trust_, and the prophet who exhorted Israel, 'Trust ye in the Lord for ever, for in the Lord Jehovah is everlasting strength,' was preaching the very same message as the Apostle who cried, 'Believe on the Lord Jesus Christ and thou shalt be saved.'