Genesis 15:7

And He said to him, I am the Lord who brought thee out of the fiery furnace of the Kasdai, to give thee this land to inherit.

I AM THE ETERNAL WHO BROUGHT THEE OUT OF UR OF THE CHALDEES, TO GIVE THEE THIS LAND TO INHERIT IT. I have already explained this verse as stating: “From the time I brought you out of Ur of the Chaldees and performed a miracle for you [which saved your life], it was the Will before Me to give you this land.” But at this present moment He did not decree giving it to Abraham, rather he said that He had brought him out of Ur of the Chaldees with the intention of giving it to him. It was for this reason that Abraham feared lest a condition of good deeds be attached to the inheritance of the land even though He already had told him twice, Unto thy seed will I give this land,, 12:7; 13:15. since He did not decree the gift of the land now as He did decree to give him a child. Therefore, Abraham said, Whereby shall I know that I shall inherit it? This is not similar to the question of Hezekiah, What shall be the sign that the Eternal will heal me? The Holy One, blessed be He, also did not act with Abraham as He did with the other signs by showing him a sign or wonder in some miraculous matter. But Abraham desired to have definite knowledge that he would inherit the land and that neither his sin nor that of his seed would withhold it from them. Or perhaps the Canaanites might repent, in which case the following verse might apply to them: At one instant I may speak concerning a nation, and concerning a kingdom, to pluck up and to break down and destroy it; but if that nation turn from their evil… I repent of the evil that I thought to do unto it. And then the Holy One, blessed be He, made a covenant with him that he will inherit the land under all circumstances.

אשר הוצאתיך מאור כשדים לתת לך את הארץ הזאת, for you, personally, will acquire this land by an act of taking symbolic possession of it.

לרשתה, so that the children (descendants) would inherit it from you under the heading of an inheritance, i.e. without any interruption in this land being owned by Israelites.

ויאמר אליו, G’d continued speaking to him, in order to reinforce his faith that the promises would be fulfilled.

'אני ה, He had not previously mentioned His name Hashem, the Essence, to Avram. When G’d mentioned this name of His now, it was not to inform Avram that this was His true name, His Essence. Avram had been familiar with that name from the time he had first gotten to know G’d. He only mentioned it now to tell Avram that He would keep His promise in His capacity of Hashem. It is as if G’d had said: “I swear by My name Hashem.”

אשר הוצאתיך מאור כשדים, it was not for nothing that I have taken you out of that environment, but in order to give you this land to inherit it. G’d meant that Avram’s descendants would inherit the land of Canaan. The relationship between this land and Avram would become comparable to the inheritance a father leaves to his sons.