Once A&E produce Cain and Abel all subsequent births would have been out of their hands.
Now that's down right naive.
I invite you to read the link I've provided.
This doesn't answer my question.
Fine, then tell me where to find an explanation for why he finds it necessary to "satisfying his own standard of perfect justice and righteousness," as you claim.
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"The exact number of humans who have ever lived is unknown to humans. However, by way of illustration, if Jehovah resurrects 20 billion (20,000,000,000) people, there would be no problem as to living space and food for them. The land surface of the earth at present is about 148,000,000 sq km (57,000,000 sq mi), or about 14,800,000,000 ha (36,500,000,000 acres). Even allowing half of that to be set aside for other uses, there would be more than a third of a hectare (almost 1 acre) for each person. As to earth’s potential food production, a third of a hectare will actually provide much more than enough food for one person, especially when, as God has demonstrated in the case of the nation of Israel, there is abundance of food as a result of God’s blessing.—
1Ki 4:20; Eze 34:27.
On the question of the earth’s food-producing power, the United Nations Food and Agriculture Organization maintains that, with only moderate improvements in agricultural methods, in even the developing areas the earth could easily feed up to nine times the population that scientists have estimated for the year 2000.—
Land, Food and People, Rome, 1984, pp. 16, 17." (Quote from IT-2 p.783)
Regarding why God handled matters as he did, the Bible says of Jehovah that " perfect is his activity, For all his ways are justice. A God of faithfulness who is never unjust; Righteous and upright is he. " (Deuteronomy 32:4) Jehovah said if Adam disobeyed God he would die. Since we have all descended from Adam, we are under the same death sentence. (Romans 5:12) Now, if God had just canceled sin, he would, in effect, say " Just kidding. I didn't really mean it when I said you would die." God could have been accused of lying, something Satan implied when he told Eve she would not die if she rebelled. And what would prevent others from also rebelling? I believe God will never violate his own standards nor will he change those standards. As Romans 3:23-26 explains: "For all have sinned and fall short of the glory of God, and it is as a free gift that they are being declared righteous by his undeserved kindness through the release by the ransom paid by Christ Jesus. God presented him as an offering for propitiation through faith in his blood. This was to demonstrate his own righteousness, because God in his forbearance was forgiving the sins that occurred in the past. This was to demonstrate his own righteousness in this present season,
so that he might be righteous even when declaring righteous the man who has faith in Jesus." Jesus perfect life balanced the scales of justice required by God to atone for sin. Thus, God made it legal to grant everlasting life as a gift to those who accept it. I believe the Bible reveals there are other reasons God handled man's rebellion the way he did, and these additional reasons reflect his wisdom, justice, power, and love as well.