Being married is being joined for life, two souls knitted together into a single living organism ’till death do us part. (Ge 2:24) Most of us, I think, are designed for this in earthly life, yet it’s a picture of God’s ultimate ideal for everyone: to be married to Christ. (Ro 7:4)
However, we all start out with a big problem here: any claim to marriage with Christ is illegitimate so long as justice has a claim on us through the Law. It’s like we’re born into life married to a man who doesn’t care for us, and the law of marriage means we’re stuck in that broken relationship with no way out. (Ro 7:2) If we act like we’re married to anyone else while this first marriage is still valid, then we’re committing adultery. (Ro 7:3a)
It’s an illustration of the fact that we’ve all broken God’s Law, so we’re not free to be married to God, to be joined to Him and in fellowship with Him, until that first relationship with sin is dealt with — justice must first be served. (Ro 7:3b)
Many think God solves our problem by putting the Law to death, as if the old husband we’ve been married to is the Law, keeping us in bondage while we’re trying to keep God’s rules in order to be accepted by Him. Since we can’t keep God’s Law well enough to please Him, they presume Christ’s work frees us from our obligation to obey it. They’re thinking God forgives us of all of our sins no matter what kind of life we are living, that no repentance or change of heart is necessary, so long as we’re willing to be forgiven and accepted by God. It’s a partial truth, the most dangerous kind of lie. (2Ti 3:5)
The full picture is that, in our natural state, inclined to and joined to our sinful ways, we aren’t at all fit to be married to God. It’s not that we’re married to the Law; we’re still hooked up with our carnal nature, our old man. (Ro 7:5) The law of sin, that relentless tendency toward disobedience and rebellion within us, has dominion over us as long as we serve it (Ro 6:16); we must die, become dead to the law, dead as far as the law is concerned, having satisfied its just demands, before we’re free to marry God. (Ro 7:4)
So, it isn’t the Law that God must deal with, it’s us. Our sin nature must be dealt with for good; our alignment with it and our commitment to it must end, before we can walk with God. Though we are required to break off this relationship with sin, this isn’t something we’re willing to do. (Ro 3:11) We need God to intervene; we need a new heart.
Christ solves the problem by crucifying our old nature in and with Himself (Ro 6:6), applying the death penalty to that part of us through His innocent death on our behalf. (1Pe 3:18) Through His resurrection (1Pe 1:3) He actually gives us a new kind of divine life (Ro 8:2), and begins to destroy the sin nature within us (Ro 6:14), creating a new nature within us that is aligned with Him. (2Co 5:17) It’s a work in progress, to be sure, but in those that belong to God, the life pattern of sin gets progressively weaker, less influential, less potent, less dominant over time. It’s a supernatural work, a transformation from within by the Spirit of God.
In being our sin (2Co 5:21), our propitiation with God (1Jn 2:2), Christ serves justice for us, submitting Himself to endure the death penalty on our behalf, and taking our sinful tendencies to the grave with Himself. This frees us from the dominion of our old nature; we no longer have to obey it or act as if we’re married to it – because we aren’t: it’s dead. (Ro 7:4) We’re free to obey God and be intimate with Him without violating the demands of justice (Ro 8:12), as Christ creates us anew in Himself unto good works. (Ep 2:10)
There’s no assurance of salvation for those who aren’t experiencing this supernatural transformation into a life of holiness; Christ not only saves His own from the penalty of sin, He also saves us from it’s power (1Jn 2:4), purifying a Bride for Himself in us. (Ep 5:25-27)