Theological term
Co-eternality
3 sermons · All terms
The Consubstantiality of the Son, Part 2
John 5:24–30 presents Jesus responding to the Jewish charge that he made himself equal with God — not by retreating, but by affirming it through two divine functions: authority over life and authority over judgment. This sermon works through the declaration of that authority in eternal life (vv. 24–25), the rationale grounded in the eternal generation of the Son from the Father (vv. 26–27), and the promise of his authority on the final day of judgment (vv. 28–30, previewed). Central to the argument is the doctrine of consubstantiality — that the Son shares the one simple undivided divine essence with the Father from all eternity — which grounds both his power to effectually call dead sinners to life and his right to preside as judge of all the earth. The sermon calls hearers to receive Christ by faith, since only God himself can save sinners, and it is the voice of the Son of God alone that awakens the spiritually dead.
The Testimony Concerning Christ's Supremacy
John 3:31–36 contains John the Baptist's climactic testimony concerning the supremacy and authority of the Lord Jesus Christ. The passage presses two inseparable realities: Christ's origin from above establishes his absolute supremacy over every earthly voice, and the Father's gift of all things into the Son's hand grounds his authority to bestow everlasting life on believers and to execute wrath on those who remain in unbelief. The sermon traces how the Baptist's testimony in these verses is of one piece with the prologue of John's Gospel, the high-priestly prayer of John 17, and the whole drift of Scripture concerning the triune God. Hearers are called to look in faith to Christ, the Lamb of God, understanding that regeneration by the Spirit is the necessary precondition for that faith, and that to reject the Son is not neutrality but the tacit accusation that God is a liar.
The Divinity of the Word
John 1:1–5 opens not in a Bethlehem stable but in eternity, establishing the Word's co-eternality, personal distinction from the Father, and full consubstantiality with the Father before a single creature existed. This sermon works through the first clause of John's prologue under five sub-points drawn from verse 1: the eternity, distinctiveness, and consubstantiality of the Word with the Father, the repetition of that glory in verse 2, and (deferred to the following week) the Word as creator of all things. The doctrine of the Trinity — one in essence, three in subsistence — is shown to be not an academic luxury but the very foundation of all communion with God and the indispensable framework for understanding why the incarnation is the supreme act of grace.