Oh ok, so God didn't know whether or not Abraham would kill his own kid or was that God testing Abram since he already knew that Abram would lie because Abram had already done that? Wouldn't God already know without having to test?
Ye are of your father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it. John 8:44
Let me use an analogy to try to explain it..
Think of an athletic coach and the athletes he is training to become more capable athletes.. He knows if he pushes his athletes to the very edge of their limits of effort and endurance they will gain physical capabilities superior to what they currently have now.. So he takes his athletes onto a beach with high sand dunes and forces them to run up and down the dunes keeping a close eye on them and forcing them to the very limit of their physical endurance but being a good coach he never pushes them to their breaking point and after a few weeks of this kind of training they are far superior athelites then they where before they started this arduous training..
If you see God as the Coach and Abraham as His athletes in Faith then you can see how God was pushing Abraham to the limit of what he would do as an act of faith.. That being in this case sacrificing his own son.. Now God as the supreme Coach knew that Abraham probably would have reached breaking point if he had actually carried out that sacrifice.. But being the Perfect coach in causing Abraham's faith to grow stronger he ended the training session to protect Abraham from reaching his faith breaking point.. So after the incident Abraham had greater faith and confidence that God would not push him beyond what he could stand..
As a side note there is great symbolic meaning in the story.. Abraham went to the point of sacrificing His only Son in the hills of the land of Moriah ( this is where Abraham was told to go ) Later in the same area Solomon would build the temple on the Hill of Moriah.. and later God offered His only Son Jesus as a sacrifice on a mount just outside the city.. It is cool to imagine that Jesus was executed maybe on the very same spot Abraham had nearly executed his only son on.. Yeah it cannot be proven it was on the same hill,, but it seems to have been in the same area.. Abraham during the incident said to his son in what i believe to be a symbolic and prophetic way that :::
Genesis 22: KJV
7 "And Isaac spake unto Abraham his father, and said, My father: and he said, Here
am I, my son. And he said, Behold the fire and the wood: but where
is the lamb for a burnt offering? {8} And Abraham said,
My son, God will provide himself a lamb for a burnt offering: so they went both of them together."
Yes at the time Abraham was telling his son what he thought was a lie to guard his son as long a possible from the knowledge of what was really happening.. But i sense Abraham was unknowingly inspired to say what he did.. Because as we know Jesus is identified by John the baptist as the Lamb of God..
John 1: KJV
29"¶ The next day John seeth Jesus coming unto him, and saith,
Behold the Lamb of God, which taketh away the sin of the world."
So is being married to his sister the reason why the LORD told Abram to get out his country?
Now the LORD had said unto Abram, Get thee out of thy country, and from thy kindred, and from thy father's house, unto a land that I will shew thee: Gen 12:1
So who told Pharaoh that Sarai was Abram's wife?
And Pharaoh called Abram, and said, What is this that thou hast done unto me? why didst thou not tell me that she was thy wife? Why saidst thou, She is my sister? so I might have taken her to me to wife: now therefore behold thy wife, take her, and go thy way. And Pharaoh commanded his men concerning him: and they sent him away, and his wife, and all that he had.
Gen 12:18-20
Abraham was still just a man who suffered from fear as much as any other man.. He feared that the Egyptians would kill him to gain his wife..
Genesis 12: KJV
11 "And it came to pass, when he was come near to enter into Egypt, that he said unto Sarai his wife, Behold now, I know that thou
art a fair woman to look upon: {12} Therefore it shall come to pass, when the Egyptians shall see thee, that they shall say,
This is his wife: and they will kill me, but they will save thee alive. {13} Say, I pray thee, thou
art my sister: that it may be well with me for thy sake; and my soul shall live because of thee."
So Sarah was not Abraham's sister he only identified her as his sister out of fear of the Egyptians..