Of Prayer, by John Calvin, tr. Henry Beveridge , at sacred-texts.com
Moreover, the Sophists are guilty of the merest trifling when they allege that Christ is the Mediator of redemption, but that believers are mediators of intercession; as if Christ had only performed a temporary mediation, and left an eternal and imperishable mediation to his servants. Such, forsooth, is the treatment which he receives from those who pretend only to take from him a minute portion of honour. Very different is the language of Scripture, with whose simplicity every pious man will be satisfied, without paying any regard to those importers. For when John says, "If any man sin, we have an advocate with the Father, Jesus Christ the righteous" (1 John 2:1), does he mean merely that we once had an advocate; does he not rather ascribe to him a perpetual intercession? What does Paul mean when he declares that he "is even at the right hand of God, who also maketh intercession for us"? (Romans 8:32). But when in another passage he declares that he is the only Mediator between God and man (1 Timothy 2:5), is he not referring to the supplications which he had mentioned a little before? Having previously said that prayers were to be offered up for all men, he immediately adds, in confirmation of that statement, that there is one God, and one Mediator between God and man. Nor does Augustine give a different interpretation when he says, "Christian men mutually recommend each other in their prayers. But he for whom none intercedes, while he himself intercedes for all, is the only true Mediator. Though the Apostle Paul was under the head a principal member, yet because he was a member of the body of Christ, and knew that the most true and High Priest of the Church had entered not by figure into the inner veil to the holy of holies, but by firm and express truth into the inner sanctuary of heaven to holiness, holiness not imaginary, but eternal (Heb. 9:11, 24), he also commends himself to the prayers of the faithful (Romans 15:30; Ephesians 6:19; Colossians 4:3). He does not make himself a mediator between God and the people, but asks that all the members of the body of Christ should pray mutually for each other, since the members are mutually sympathetic: if one member suffers, the others suffer with it (1 Corinthians 12:26). And thus the mutual prayers of all the members still labouring on the earth ascend to the Head, who has gone before into heaven, and in whom there is propitiation for our sins. For if Paul were a mediator, so would also the other apostles, and thus there would be many mediators, and Paul's statement could not stand, 'There is one God, and one Mediator between God and men, the man Christ Jesus;' (1 Timothy 2:5) in whom we also are one (Romans 12:5) if we keep the unity of the faith in the bond of peace (Ephesians 4:3)," (August. Contra Parmenian, Lib. ii. cap. 8). Likewise in another passage Augustine says, "If thou requirest a priest, he is above the heavens, where he intercedes for those who on earth died for thee" (August. in Ps. 94). We imagine not that he throws himself before his Father's knees, and suppliantly intercedes for us; but we understand with the Apostle, that he appears in the presence of God, and that the power of his death has the effect of a perpetual intercession for us; that having entered into the upper sanctuary, he alone continues to the end of the world to present the prayers of his people, who are standing far off in the outer court.