It made believers free from sin !
The atoning death of Christ made believers dead to sin Rom 6:7
7 For
he that is dead is freed from sin.
See every true believer, prior to becoming a believer, died when Christ died, so Pauls meaning here in Rom 6:3-6
3 Know ye not, that so many of us as were baptized into Jesus Christ were baptized into his death?
4 Therefore we are buried with him by baptism into death: that like as Christ was raised up from the dead by the glory of the Father, even so we also should walk in newness of life.
5 For if we have been planted together in the likeness of his death, we shall be also in the likeness of his resurrection:
6 Knowing this, that our old man is[was past tense] crucified with him, that the body of sin might be destroyed, that henceforth we should not serve sin.
The sinner we were in Adam, with all of our sins was put to death with Christ as they were/had been charged to Him as our surety representative, so when He died, all whom He represented died.
Paul makes the same point here 2 Cor 5:14
14 For the love of Christ constraineth us; because we thus judge,
that if one died for all, then were all dead:
The ESV captures the original meaning of this verse here:
For the love of Christ controls us, because we have concluded this:
that one has died for all, therefore all have died;
The all Christ died for all died with Him !
So back to our text in Rom 6:7
7 For he that is dead is freed from sin.
Now the word freed here is an interesting word and its a legal word, its the word dikaioó and means:
I make righteous, defend the cause of, plead for the righteousness (innocence) of,
acquit, justify; hence: I regard as righteous.
The ASV captures the truth:
for he that hath died
is justified from sin.
So everyone, all for whom Christ died have been Justified from sin, they stand just and righteous before Gods Law and Justice, as a free gift through Jesus Christ.
Those Christ died for never can be charged with sin Rom 4:8
Blessed
is the man to whom the Lord will not impute sin.
This blessed man is everyone for whom Christ died !
Its an whole world of men 2 Cor 5:19
To wit, that God was in Christ, reconciling the world unto himself,
not imputing their trespasses unto them; and hath committed unto us the word of reconciliation.
Why doesnt God charge these ones with their sins ? Because they have died with Christ and have become freed from Sin Rom 6:7 !