The Greek word mesiteúō, represented by G3315, means to interpose as an arbiter or, by implication, to ratify as a surety, and is translated as confirm. It appears 1 time across 1 unique verse in the Bible, making its single usage highly specific and significant.
The sole appearance of G3315 is in Hebrews 6:17. In this passage, the word describes God's action to provide an absolute guarantee for His promise. The verse states that God, being willing G1014 to show the immutability G276 of His counsel G1012 to the heirs G2818 of promise G1860, confirmed it with an oath G3727. This act of confirming serves as a definitive ratification of His unchangeable purpose.
Several related words from its context help clarify the meaning of God's confirmation:
- G3727 hórkos (oath): This is the instrument by which God confirms His promise. It is defined as a sacred restraint or oath. Its power is seen when even an earthly king feels bound to act for his oath's sake Matthew 14:9.
- G1860 epangelía (promise): This is the object of the confirmation. It is an announcement or a divine assurance of good. Believers are sealed with the Holy Spirit of promise Ephesians 1:13, tying God's pledge to His very presence.
- G1012 boulḗ (counsel): This refers to God's will or purpose that is being confirmed. The word signifies a determined plan, such as when Christ was delivered by the determinate counsel of God Acts 2:23.
The theological weight of G3315 is centered on the nature of God's covenantal faithfulness.
- Divine Ratification: The word signifies God's deliberate act to interpose on behalf of His own promise, providing a binding guarantee. By confirming His counsel with an oath G3727, He adds a second immutable thing to His word Hebrews 6:18.
- Assurance for the Heirs: This act of confirmation is performed for the benefit of the "heirs of promise," demonstrating more abundantly G4054 the unchangeable nature of His plan Hebrews 6:17. It is designed to give strong consolation and hope.
- Unchangeable Purpose: The use of G3315 underscores that God's counsel G1012 is not only certain but is also shown to be certain. The confirmation is an outward display of an internal and eternal reality.
In summary, while G3315 is used only once, its role is pivotal. It articulates the ultimate act of divine assurance, where God confirms His own promise to leave no room for doubt. Occurring in Hebrews 6:17, it reveals a God who not only makes promises but also intervenes to ratify them, securing the hope of all who are heirs to His unchangeable counsel.