Every Tongue Shall Swear" and "Every Tongue Should Confess": Isaiah 45:23 and Philippians 2:11

Isaiah 45:23 reads:

"I have sworn by myself, the word is gone out of my mouth in righteousness, and shall not return, that unto me every knee shall bow, every tongue shall swear."

Philippians 2:11 states:

"That every tongue should confess that Jesus Christ is Lord, to the glory of God the Father."

There is a clear verbal and conceptual connection: "every tongue shall swear" / "every tongue should confess," with both describing a universal acknowledgment of the Lord's supremacy. Yet several distinctions must be made.

First, the body of Christ is a mystery not revealed in the prophets. Paul insists that the present dispensation was "hid in God" and not made known in ages past. Therefore, Isaiah 45:23 cannot be a direct, specific prophecy of the mystery body of Christ. Isaiah's words express a universal eschatological reality but not the particular structure of the present church age.

Second, Philippians 2:11 is often read as a straightforward evangelistic text for today: people are urged to "confess Jesus Christ as Lord" as though this is the direct saving requirement in this dispensation. But that conflates different gospels and different economies.

When Paul writes in Philippians 2 that:

"Every tongue should confess that Jesus Christ is Lord,"

he is describing the ultimate universal acknowledgment of Christ's lordship. He is not necessarily delineating the terms of personal salvation under the present mystery gospel. Elsewhere, the gospel of our day is summarized as by grace through faith, "not of works." Confessing Jesus as Lord, especially when tied to public allegiance and obedience, belongs more naturally to a kingdom framework, where lordship and obedience are central, than to the strictly non-works character of the body of Christ's gospel.

If we insist that confession of Jesus as Lord is required as a work or outward allegiance for salvation in this dispensation, we introduce a works component into a message that Paul elsewhere insists is "not of works, lest any man should boast." Moreover, Romans 10 (with its "confess with thy mouth" emphasis) and sayings of Jesus about confessing Him before men are situated in a different context, closely tied to Israel and the kingdom.

Therefore:

• Isaiah 45:23 speaks of a universal future reality in which all acknowledge the Lord.
• Philippians 2:11 echoes that reality and specifies that the confession centers on Jesus Christ as Lord.
• This universal confession aligns most closely with the kingdom consummation---when the lordship of Christ is openly manifest and universally acknowledged---not specifically with the internal terms of salvation for the mystery body of Christ.

How then does it "work with" the body of Christ?

The body of Christ participates in that final scene, but the basis upon which its members are included is not that they fulfilled a lordship-confession requirement as a work. They are in Christ by grace through faith, apart from works. In the consummation, they gladly and openly confess His lordship along with the rest of creation, but their salvation did not depend on performing that confession as a meritorious act.

In other words, Philippians 2:11 does not define the soteriological terms of the mystery gospel; it portrays the cosmic outcome in which every tongue, including those of the redeemed body of Christ and even of His enemies, will ultimately acknowledge that Jesus Christ is Lord, to the glory of God the Father.