Answering in order..<quoted text>
Please quote specifically what Psalm 12 says, if you would be so kind.
If there were no Laws before Moses, then please explain who anyone sinned before Moses, if you would be so kind. By the way, I most respectfully submit that you have misrepresented what Jesus was saying as it relates to just looking at a woman to desire her. After all, if a single man desired a single woman, this was not committing adultery in his heart. You see, in order for adultery to be committed, a mans wife must have been involved in the illicit sexual affair according to the Law of Moses, i.e.,If a man commits adultery with another mans wifewith the wife of his neighborboth the adulterer and the adulteress are to be put to death(Lev 20:10, NIV).
Now, if you read this verse very closely, you will discover that the status of the man (regardless if married or single) was unimportant, right? And thus, it was not important whether or not Abraham was married, as long as his handmaid was not, right?
Many of the acts that the God of Israel committed or commanded were wicked and revengeful. However, since He is allegedly sovereign, then He can do as He pleases without question, right?
And what do you supposed enslaved them, other than men reading the very same Word of God, right?
I most respectfully ask,Was the bible both in existence and present when the slave trade was active?
again, when the Declaration of Independence and the US Consititution were created, it was not for all men, but rather a specific group, i.e., the White Anglo-Saxon Protestant, right?
But it was the God of Israel who commanded Moses to commit genocide against innocent people and take their land simply because they worshiped a different God, right?
Do you suppose that it is hypocritical to become the moral standard as it relates to other nations, yet commit so many inhumane atrocities against ones own people, if you do not mind my asking?...
 You are quite capable of reading it for yourself...
 Adam...sin and death came into the world through one man..
Law is the knowledge of sin
 "But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart." go argue with Jesus ..
 According to Jesus ..a man leaves his mother and father and the two become one flesh..Jesus teaches us , that was Gods purpose from the beginning..
Abraham fell short of the original purpose of marriage , and paid the price of bringing trouble in his family .
 God acts justly ..and loves justice.
 Men can read the scriptures all they like..obeying the word is a different matter
James " Become doers of the word and not forgetful hearers.."
Slavery existed for centuries..Slavery was practiced in every ancient culture: Egyptian, Babylonian, Greek, Roman and Israelite.
Slavery was an integral part of ancient commerce, taxation, and temple religion
Patrick of Ireland was sold into slavery ..
.then as the gospels spread the Christian abolitionist movement began to argue , it is wrong to sell man who is created in the image of god as a slave..So It was the gospels that had such an effect on the consciences of men of good will
 Constitution is to do with politics, a true Christian was to keep clear of the world..but Christian influence affected the men who were going for power ,
 God is sovereign ..he brings war onto nations that act badly ..they were not innocent,,false assumption.
God made the deal right from the start with Israel ..blessings and curses ..they signed up ..