This spiritual union of the believer with Christ—the reality of the infallible, eternal redemptive purpose may be described and explained in the following terms:
• It is an organic union. Believers become members of Christ as members of an organism, albeit this organism is spiritual. This spiritual union is to find expression in the local assembly (1 Cor. 12:27; Eph. 4:11–16; Phil. 1:27).
• It is a vital union. The life of Christ becomes the dominating and energizing principle within the believer (Gal. 2:20; Rom. 6:11–14; 8:5–14; 2 Cor. 13:5).
• It is a spiritual union. Not only is this union spiritual in nature, it is mediated and sustained by the ministry of the Holy Spirit (Rom. 8:9–16; Eph. 3:16–19).
• It is a personal union. Every believer is personally or individually united to Christ directly as to his spiritual life (2 Cor. 5:17; Gal. 2:20).
• It is a legal or federal union. As the believer was once identified or in union with Adam, so he is now in union with Christ (Rom. 5:12–21). All the legal or covenant obligations of the believer rest on or are met in Christ, and all the legal or covenant merits accrue to the believer.
• It is a reciprocal union. This takes into account both the objective and subjective aspects. The initial action is on the part of Christ, to whom the believer in faith reacts, interacts, or reciprocates. This is not only union, but necessarily communion with the triune Godhead through Christ (Jn. 14:6, 9, 16–17, 20; Rom. 8:9–16; Eph. 3:16–19).
• It is a transforming union. Believers are changed into the image of Christ according to his human nature. This began at regeneration, when the image of God was restored in principle in righteousness, holiness of the truth and knowledge (Eph. 4:22–24564; Col. 3:9–10) and continues throughout the Christian experience as believers are “conformed to the image of his Son” in maturity, sufferings, etc. (Rom. 6:6, 14; 8:9–10; 14–17, 29; Eph. 2:10).
563 “…if we died with him…” (sunapeqa,nomen)., i.e., were identified or brought into union in his death. 564 Eph. 4:22–24 should read as does Col. 3:10—as a present condition based on a past fact, i.e., “you have [already] put on…you have [already] put off…” not as a command. Cf. the use of the aor. inf. of result, which views the action as past. 220
• It is an inscrutable union. This is what old Divines termed the “mystical union” of Christ and his own, i.e., this union is mysterious in the sense of being incomprehensible and incapable of intelligent comprehension in our finite state.
• It is an indissoluble union. This relation, identification or union between Christ and the believer can never be dissolved. Note that, in biblical teaching, justification by faith has an immediate relation to assurance of faith (e.g., Rom. 5:1–3). This relationship is both necessary and logical because of the reality of the believer’s indissoluble union with Christ.
Thus, the believer’s union with Christ stands at the very center of all redemptive truth and forms the objective scriptural basis for the final perseverance of the true people of God.
Union with Christ and Romans Chapter Six
The Relation between Romans 5:10–21 And 6:1–23
Romans chapter six, more than any other passage, deals with practical implications and necessary expression of the believer’s union with Christ in the life and experience. The basis of the teaching in this chapter on the believer’s union with Christ is laid in 5:10, 12–21:
• Believers are saved by [in union with] the resurrection–life of our Lord (evn th/| zwh/| auvtou/).
• As every believer was once identified with or considered in union with Adam, so now every true believer is considered as identified with or in union with Christ.
• As the sin of Adam was imputed to the human race, and everyone inherited his sin–nature, so everyone in union with Christ has both an imputed righteousness [justification] and an imparted righteousness [sanctification].
• As sin reigned unto death in Adam, so grace reigns through righteousness unto eternal life through the Lord Jesus Christ. Thus, a converted life is the expression of the reality of the believer’s union with Christ.
Calvinism /Arminianism pg171.
• It is an organic union. Believers become members of Christ as members of an organism, albeit this organism is spiritual. This spiritual union is to find expression in the local assembly (1 Cor. 12:27; Eph. 4:11–16; Phil. 1:27).
• It is a vital union. The life of Christ becomes the dominating and energizing principle within the believer (Gal. 2:20; Rom. 6:11–14; 8:5–14; 2 Cor. 13:5).
• It is a spiritual union. Not only is this union spiritual in nature, it is mediated and sustained by the ministry of the Holy Spirit (Rom. 8:9–16; Eph. 3:16–19).
• It is a personal union. Every believer is personally or individually united to Christ directly as to his spiritual life (2 Cor. 5:17; Gal. 2:20).
• It is a legal or federal union. As the believer was once identified or in union with Adam, so he is now in union with Christ (Rom. 5:12–21). All the legal or covenant obligations of the believer rest on or are met in Christ, and all the legal or covenant merits accrue to the believer.
• It is a reciprocal union. This takes into account both the objective and subjective aspects. The initial action is on the part of Christ, to whom the believer in faith reacts, interacts, or reciprocates. This is not only union, but necessarily communion with the triune Godhead through Christ (Jn. 14:6, 9, 16–17, 20; Rom. 8:9–16; Eph. 3:16–19).
• It is a transforming union. Believers are changed into the image of Christ according to his human nature. This began at regeneration, when the image of God was restored in principle in righteousness, holiness of the truth and knowledge (Eph. 4:22–24564; Col. 3:9–10) and continues throughout the Christian experience as believers are “conformed to the image of his Son” in maturity, sufferings, etc. (Rom. 6:6, 14; 8:9–10; 14–17, 29; Eph. 2:10).
563 “…if we died with him…” (sunapeqa,nomen)., i.e., were identified or brought into union in his death. 564 Eph. 4:22–24 should read as does Col. 3:10—as a present condition based on a past fact, i.e., “you have [already] put on…you have [already] put off…” not as a command. Cf. the use of the aor. inf. of result, which views the action as past. 220
• It is an inscrutable union. This is what old Divines termed the “mystical union” of Christ and his own, i.e., this union is mysterious in the sense of being incomprehensible and incapable of intelligent comprehension in our finite state.
• It is an indissoluble union. This relation, identification or union between Christ and the believer can never be dissolved. Note that, in biblical teaching, justification by faith has an immediate relation to assurance of faith (e.g., Rom. 5:1–3). This relationship is both necessary and logical because of the reality of the believer’s indissoluble union with Christ.
Thus, the believer’s union with Christ stands at the very center of all redemptive truth and forms the objective scriptural basis for the final perseverance of the true people of God.
Union with Christ and Romans Chapter Six
The Relation between Romans 5:10–21 And 6:1–23
Romans chapter six, more than any other passage, deals with practical implications and necessary expression of the believer’s union with Christ in the life and experience. The basis of the teaching in this chapter on the believer’s union with Christ is laid in 5:10, 12–21:
• Believers are saved by [in union with] the resurrection–life of our Lord (evn th/| zwh/| auvtou/).
• As every believer was once identified with or considered in union with Adam, so now every true believer is considered as identified with or in union with Christ.
• As the sin of Adam was imputed to the human race, and everyone inherited his sin–nature, so everyone in union with Christ has both an imputed righteousness [justification] and an imparted righteousness [sanctification].
• As sin reigned unto death in Adam, so grace reigns through righteousness unto eternal life through the Lord Jesus Christ. Thus, a converted life is the expression of the reality of the believer’s union with Christ.
Calvinism /Arminianism pg171.