In the substitutionary atonement (which is the gospel by which we are saved); God the Father looks at Jesus as He died on the Cross in our place, and sees all of our sin(s) and imperfection(s); and punished it in Him as He took the penalty for our sin(s). Now when He looks at us, He sees the perfect life, blood, and righteousness of Jesus as it is applied to us by imputation through the appropriation of His blood to our sin(s) through faith in God's propitiation.
Now in definitions 3) and 5), we must understand that these have to do with grace as it applies to sanctification; and that this is a separate issue from justification. Once we are forgiven perpetually of all of our sin(s), God begins to do a transforming work in our nature and character.
Sins that are past...not perpetual forgiveness.
Gal. 2:17 "But if, while seeking to be justified in Christ, we ourselves have also been found sinners, is Christ then a minister of sin? May it never be!
The problem with your multiple definitions is that you can glide in and out of the difficulties by avoiding the truth. I am not going to post all the verses that say a Christian can't sin...or that we have victory over sin in Christ. I leave that for you.
It is like this: In justification, we are declared righteous by God through faith in Christ's shed blood; and this imputation of righteousness is true and immutable even when we blow it. For God counts righteousness even to the ungodly sinner when he has faith in Jesus (Romans 4:5).
And therefore my identity in Christ as one who has believed on His propitiary work is that I am righteous in Him no matter what: even when I blow it I am righteous before Him.
Believing in His work on the cross...is not Christianity or the gospel. That is a counterfeit illusion of what being a Christian is about. Being raised into new life....now that is the gospel...being freed from sin and bondage. You are trying to make the Gospel a saving act to THE FLESH. But if we live by the flesh...even fully trusting in Jesus blood...we will die. If we put to death the deeds of the body by the Spirit...we will live.
Our beliefs mean nothing. You are trusting in the "Emperor's new clothes" of righteousness in this. It will be revealed to be hay and stubble on that day...
Now that I have this identity, my best response is to begin to live like I am what God says I am. The fact that I am righteous means that I will do righteous things (1 John 3:7).
So then, sanctification is the result of unconditional justification (of course when I say unconditional, the exception to this is that there is always the condition of faith in Jesus; but other than that there are no conditions).
Unconditional justification? See how the error grows...
Justification is a moving target. What makes you righteous today...could be lost tomorrow. Did you know that Satan was created tamim? (innocent of evil). But then something happened. So we are still "in play". We must finish our race.
I will not comment on the rest as it contains the same mixture.