And that he might reconcile both unto God in one body by the cross, having slain the enmity thereby: That he might reconcile both - in one body - That the Jews and Gentiles, believing on the Lord Jesus, might lay aside all their causes of contention, and become one spiritual body, or society of men, influenced by the Spirit, and acting according to the precepts of the Gospel.
Having slain the enmity thereby - Having, by his death upon the cross, made reconciliation between God and man, and by his Spirit in their hearts removed the enmity of their fallen, sinful nature. Dr. Macknight thinks that abolishing the enmity is spoken of the removal of the hatred which the Jews and Gentiles mutually bore to each other, because of the difference of their respective religious worship; and that slaying the enmity refers to the removal of evil lusts and affections from the heart of man, by the power of Divine grace. This is nearly the sense given above.