Too seldom do believers meditate upon this grand and overarching truth, that Christ died and rose again in order to make of all mankind ONE PEOPLE. I mean by "all mankind" from all nations, not that everyone is one or will be one. That can only happen IN CHRIST, by faith (Eph. 2:8-9). But don't miss the beauty of oneness, this union of believers with their Lord that is most like heaven though begun on earth! Please read this beautifully written explanation of such a grand truth from Octavius Winslow:
“One Lord.” (Ephesians 4:5)
The Church is also one in the Son- “There is one Lord.” The Lord Jesus is the one Head, as He is the one Foundation, of the Church. All believers are chosen in Christ, blessed in Christ, saved in Christ, preserved in Christ, and in Christ will be glorified. The work of Christ is the one resting-place of their souls. They rely for pardon upon the same blood, for acceptance upon the same righteousness, and for sanctification upon the same grace.
One in Christ, all other differences and distinctions are merged and forgotten: “There is neither Jew nor Greek; there is neither bond nor free; there is neither male nor female for you are all one in Christ Jesus.” Blessed truth! the “righteousness of God, which is unto all and upon all those who believe,” imparts the same completeness to all believers in Christ. Upon the breastplate of the great High Priest, now within the veil, every, name is alike written- not a sectarian appellation dims the luster of the “Urim and the Thummim,” in whose glowing light the names of all the saints are alike enshrined. What a uniting truth is this!
Jesus is the one Head of life, light, and love, to all His saints. He carried the transgression of all- He bore the curse of all- He endured the hell of all- He pardons the sin of all- He supplies the need of all- He soothes the sorrows of all, and He lives and intercedes for all. To Him all alike repair, it is true, with different degrees of knowledge and of faith, and from different points; yet, to Jesus, as to one Savior, one Brother, one Lord, they all alike come. Oh! what a cementing principle is this! The body of Christ- the purchase of the same blood, loved with the same affection, and in heaven represented by the same Advocate, and soon, oh, how soon, to be “gloried together” with Him.
What love, then, ought I to bear towards Him whom Jesus has so loved! How can I feel coldly, to, or look unkindly at, or speak uncharitably of, one whom Jesus has redeemed with the same precious blood, and whom He carries each moment in the same loving heart?