Tafsiran Kejadian 23:17: Rashi, Chizkuni, Sforno & Radak

ויקם שדה עפרון AND THE FIELD OF EPHRON WAS MADE SURE (literally, it rose) — It received a rise in importance because it passed from the possession of a commoner (הדיוט an ordinary person) into the possession of a king (Genesis Rabbah 58:8). But the real meaning of the verse is: The field and the cave that was therein and all the trees … became secured to Abraham as a possession etc. (i. e. verse 17 is an incomplete sentence and must be read together with verse 18, thus: ויקם השדה וגו… לאברהם למקנה —The field etc. became secured to Abraham as a possession).

ויקם, literally: “it stood up;” the subject is the field, and the Torah means that by becoming the property of Avraham this field now had “risen” in spiritual value. שדה עפרון, one side of that field extended along the whole length of that town. Here it is described in precise detail, i.e. ממרא היא חברון, whereas previously it had been described as קרית ארבע, “the city of the four;” later on during the lifetime of Yaakov it has been described as ממרא קרית הארבע היא חברון, (Genesis 35,27) a location where both Avraham and Yitzchok had been residents at one time or another. Earlier. in connection with Avraham, (12,18) he had been described as having settled in Kiryat Arba which is described there as “part of Chevron.” This was meant to tell us that Mamre was the original founder who had built himself a town adjacent to Chevron which had previously been inhabited by Hittites. He called that new town “Mamre,” thus memorializing himself. The “groves” of Mamre, i.e. אלוני ממרא, were situated at the entrance to that town. The cave of Machpelah, in another direction, at that time had belonged to the Hittites. After Mamre’s death, a giant by the name of Arba became very powerful and claimed the entire area, naming it Arba after himself. Several centuries later, when the Israelites had defeated most of Canaanite tribes they called that town Chevron.

ויקם השדה לאברהם למקנה, the word ויקם teaches that the purchase was confirmed by a sealed document