As we continue to work through this passage of Ephesians, think about where you’ve heard this verse before. How was it used? What was the point? Was it used as a tool to attack denominations? Was it used as a tool to excuse doctrinal error? Think about it as you read this part of the commentary.
As always, I’d be happy to hear your thoughts.
4:5 “One Lord, one Faith, one baptism,”
Here begins the second triad, that of one Lord, one faith, and one baptism.
Just as the Body of Christ, the Church, is not a self-existing, self-sustaining entity that can exist without the power of the Spirit. It is not free to do as it wills. What also unifies the Church is one Head, one Lord, and that is Jesus. He is in complete control by virtue of the price He paid, and He is the “one who is in charge by virtue of possession, owner.”
Jesus in our Lord, our Kyrios, our Master. All authority is His. All dominion is His. And the work and life of the Body is His, also. Therefore, anytime we say “our church” or “my church,” we should remind ourselves that what binds us together is not the confederacy of churches but the united body of the Church which belongs to the Lord, Jesus, and no other.
The “faith” that is spoken of here is not that of a particular dogma, catechism, creed, or religious convention. “It refers to the principle of faith by means of which all the saints enter into salvation.” The Apostle Paul spoke of this faith earlier in the letter when he said: “For by grace are ye saved through faith; and that not of yourselves: [it is] the gift of God: Not of works, lest any man should boast” (Ephesian 2:8-8). What unites us as a body of believers is not our works, anything we have done, good or bad, but the same entry requirement: faith in Jesus Christ for salvation.
Here the translators transliterate the Greek words εἷς βάπτισμα (heis baptisma) as “one baptism.” Even though the words carry the meaning of being immersed into water, literal water baptism is not what is being addressed. This is a spiritual baptism, a placing of the believer in the Body of Christ. Only the Holy Spirit can do this. Paul referenced this “baptism” when writing to the Corinthians: “For by one Spirit are we all baptized into one body, whether [we be] Jews or Gentiles, whether [we be] bond or free; and have been all made to drink into one Spirit” (1 Corinthians 12:13).
 William Arndt et al., A Greek-English Lexicon of the New Testament and Other Early Christian Literature (Chicago: University of Chicago Press, 2000), 577.
 Kenneth S. Wuest, Wuest’s Word Studies from the Greek New Testament: For the English Reader, vol. 4 (Grand Rapids: Eerdmans, 1997), 96.