Coded Logic,
Wow, lots of good questions. I'm afraid I don't have ALL the answers. This is what I believe is accurate:
Can you please explain what you mean by "justify giving life to humans"?
To circumvent the originally stated death penalty. First of all, I just want to say that neither me or anyone else makes the rules, God does. God is the one who says the wages of sin is DEATH. The biblical definition of death is the separation of the body from the soul. (see resurrection of the son of the widow of Zerapath in 1984 edition of NWT) Superimposing a naturalistic definition on a biblical term first mentioned by God himself in the garden of eden is inappropriate...just sayin'.
At any rate all are born to sin since Adam. We have a sin nature.
For as in Adam all die, even so in Christ shall all be made alive - 1 Cor. 15: 22
Christ substitutes for the believer .... his death for theirs; if they want it.
And wouldn't any such a justification be necessary before our birth?
I'm not sure see your point. I don't think there is a moral imperative for God to justify anyone at anytime.
Also, what do you mean by "born dead in Adam"? Is this a reference to sin?
Yes
If it is a reference to sin, why aren't those who believe in Jesus now free from sin?
But they are! Man was constructed in the image of God a tri-partite being. We are spirit, soul and body. All are YOU, separately and collectively. Sometimes the bible speaks of the body as you, sometimes the soul as you, sometimes the spirit as you.
And the very God of peace sanctify you wholly; and I pray God your whole spirit and soul and body be preserved .... - 1Thess. 5: 23
Each exerts an influence on your consciousness. Originally, the spirit of man led his consciousness. That died and his lower animal nature took the lead.
We still are aware of morality and have very high aspirations,just not the means to get there perfectly. In the Fall of Adam all three parts were corrupted, body, soul and spirit.
When a new believer asks Jesus into their heart to live there forever, a new spirit is given that believer... an incorruptible one or seed.
It is still YOU, but a perfected You... the spirit you. This is the only part God can interact with the believer on
because the flesh and soul are still unperfected.... the redemption of your body comes later.
With this understanding difficult verses come to life:
Whosoever is born of God doth not commit sin; for his seed remaineth in him: and he cannot sin, because he is born of God. 1 John 3: 9
vs.
If we say that we have no sin, we deceive ourselves, and the truth is not in us. 1 John 1: 8
The first verse is speaking of the new spirit a believer receives when he is born again into the family of God.
The second verse is speaking of the still unredeemed bodies of believer and unbeliever alike. Both are "YOU".
And if this contract justifies humans having life, then why do Christians still die?
Only our spirits can be redeemed at this time. We are still waiting on the glorification of the body.
And not only they, but ourselves also, which have the firstfruits of the Spirit, even we ourselves groan within ourselves, waiting for the adoption, to wit, the redemption of our body. - Roman : 23
Again, I don't claim to have all the answers. This is what I've learned since leaving the WT. I believe my responses represent mainstream Christian thought and sound historical Christian doctrine.