Verse 8. - When all three witnesses are enumerated together, the Spirit naturally comes first. He is a living and a Divine witness, independent of the two facts of the baptism and the Passion, which concur with him in testifying that the Son of God is Jesus Christ.

5:6-8 We are inwardly and outwardly defiled; inwardly, by the power and pollution of sin in our nature. For our cleansing there is in and by Christ Jesus, the washing of regeneration and the renewing of the Holy Ghost. Some think that the two sacraments are here meant: baptism with water, as the outward sign of regeneration, and purifying from the pollution of sin by the Holy Spirit; and the Lord's supper, as the outward sign of the shedding Christ's blood, and the receiving him by faith for pardon and justification. Both these ways of cleansing were represented in the old ceremonial sacrifices and cleansings. This water and blood include all that is necessary to our salvation. By the water, our souls are washed and purified for heaven and the habitation of saints in light. By the blood, we are justified, reconciled, and presented righteous to God. By the blood, the curse of the law being satisfied, the purifying Spirit is obtained for the internal cleansing of our natures. The water, as well as the blood, came out of the side of the sacrificed Redeemer. He loved the church, and gave himself for it, that he might sanctify and cleanse it with the washing of water by the word; that he might present it to himself a glorious church, Eph 5:25-27. This was done in and by the Spirit of God, according to the Saviour's declaration. He is the Spirit of God, and cannot lie. Three had borne witness to these doctrines concerning the person and the salvation of Christ. The Father, repeatedly, by a voice from heaven declared that Jesus was his beloved Son. The Word declared that He and the Father were One, and that whoever had seen him had seen the Father. And the Holy Ghost, who descended from heaven and rested on Christ at his baptism; who had borne witness to Him by all the prophets; and gave testimony to his resurrection and mediatorial office, by the gift of miraculous powers to the apostles. But whether this passage be cited or not, the doctrine of the Trinity in Unity stands equally firm and certain. To the doctrine taught by the apostles, respecting the person and salvation of Christ, there were three testimonies. 1. The Holy Spirit. We come into the world with a corrupt, carnal disposition, which is enmity to God. This being done away by the regeneration and new-creating of souls by the Holy Spirit, is a testimony to the Saviour. 2. The water: this sets forth the Saviour's purity and purifying power. The actual and active purity and holiness of his disciples are represented by baptism. 3. The blood which he shed: and this was our ransom, this testifies for Jesus Christ; it sealed up and finished the sacrifices of the Old Testament. The benefits procured by his blood, prove that he is the Saviour of the world. No wonder if he that rejects this evidence is judged a blasphemer of the Spirit of God. These three witnesses are for one and the same purpose; they agree in one and the same thing.And there are three that bear witness on earth,.... To the same truth of the sonship of Christ:

the Spirit, and the water, and the blood; by the "Spirit" is not meant the human Spirit or soul of Christ; for however that may be a witness of the truth of his human nature, yet not of his divine sonship: and moreover cannot be said to be a witness in earth; rather the Gospel, called the Spirit, which is a testimony of Christ's person, office, and graces and is preached by men on earth; or else the gifts of the Spirit bestowed on men on earth, both in an extraordinary and ordinary way, by which they have been qualified to bear witness to this truth; or it may be the Holy Spirit itself is intended, as he is in the hearts of his people here on earth, where he not only witnesses to the truth of their sonship, but also of the sonship of Christ, and is that witness a believer has within himself of it, mentioned in 1 John 5:10. By water is designed, not internal sanctification, which though an evidence of regeneration and adoption, yet not of Christ's sonship; but water baptism, as administered on earth in the name of the Father, and of the Son, and of the Holy Ghost; and which is a noble and standing testimony to the proper, natural, and eternal sonship of Christ: and by "blood" is intended, not justification by the blood of Christ, but rather the blood of the saints, the martyrs of Jesus, who have shed it on earth, in testimony of their faith in the Son of God, and thereby sealing the truth of it; or rather the ordinance of the Lord's supper, which is the communion of the blood of Christ; and represents that blood which was shed for the remission of sins, and has a continual virtue to cleanse from all sin, which is owing to his being the Son of God. The three witnesses on earth seem therefore to be the Gospel, attended with the Spirit and power of God, and the two ordinances of baptism, and the Lord's supper:

and these agree in one; in their testimony of Christ, the word and ordinances agree together; and the sum and substance of them is Christ; they come from him, and centre in him; they are like the cherubim over the mercy seat, that looked to one another, and to that; and the two ordinances are the church's two breasts, which are equal, and like to one another; there is a great agreement between them, they are like to two young roes that are twins.