The field and the cave in it were deeded to Abraham by the Hittites

Genesis 23:1-20
Sarah lived to be a hundred and twenty-seven years old. She died at Kiriath Arba (that is, Hebron) in the land of Canaan, and Abraham went to mourn for Sarah and to weep over her.
The Hittites replied to Abraham, “Sir, listen to us. You are a mighty prince among us. Bury your dead in the choicest of our tombs. None of us will refuse you his tomb for burying your dead.”
He said to them, “If you are willing to let me bury my dead, then listen to me and intercede with Ephron son of Zohar on my behalf so he will sell me the cave of Machpelah, which belongs to him and is at the end of his field. Ask him to sell it to me for the full price as a burial site among you.”
No, my lord,” he said. “Listen to me; I give you the field, and I give you the cave that is in it. I give it to you in the presence of my people. Bury your dead.”
Ephron answered Abraham, “Listen to me, my lord; the land is worth four hundred shekels of silver, but what is that between you and me? Bury your dead.”
So the field and the cave in it were deeded to Abraham by the Hittites as a burial site.
Abraham, as a resident alien, has no right to land. He 'has not received the thins promised' . and must bargain even for a place to bury his wife. This chapter and chapter 21 record the first legal rights of Abraham's family in Canaan.
The Hittites occupying the Hebron area may have been early settlers drawn south by trade from the Hittite Empire in Turkey. The deal is vividly described, conforming in detail to Hittite law ( the mention of the trees, the weighing of the silver by current standards, and the proclamation in the presence of witnesses at the city gate.
Family tombs, often caves or cut from rock, were also customary. The traditional site of the burial-cave at Hebron is today covered by a mosque, for Islan holds Abraham in high regard.
Why?
Abraham are a mighty prince among Hittites the Canaanite. They treated Abraham with respect. But Abraham insisted to pay and get the property to bury Sarah. This is the first property of land to Abraham.
Even Abraham has not gotten the promised land, but this is the first land he got.
Abraham has a good reputation so Hittites like help him. This is a Christian should show up in his behavior better than any others.
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赫人只願意借墳地給亞伯拉罕使用，在我的墳地埋葬你的死人，地還是他們的。亞伯拉罕表明要有地的所有權。一定要用買的，不要用借用或是送的，亞伯拉罕不想欠別人人情，不要擔心以後被要回去。不希望他的富足是因為赫人使他富足，使他抬不地頭，我們是靠誰富足，靠自己能力，別人、家族。是只靠神富足。他認定神一定會將這地賜給他，所以不將撒拉埋葬在這裏。會買地置產也是為將來神會賜福給的產業。
400色客勒很貴，大衛有用50色客勒買起建聖殿，撒馬利亞城用6000色客勒買的。所以可見這個價格是漫天要價，亞伯拉罕完全沒有還價，且馬上付現。這就是他願意投資在永恆的居所。
我們是否願意將一生跟隨耶穌的道路，即投資在永恆的產業中投資。所以亞伯拉罕不要借用，不要贈送，願意花極高代價來買永恆的產業，應許之地。
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How?
Help me Lord, for I am weak and a stranger in this world, may your blessing and Holy Spirit lead me in my life, give me strength to honor your Holy Name.