What are the implications of "Dei Hashiv lo"?
Rashi: It implies that the relative must redeem the entire field, and cannot redeem it in halves. 1
The Gemara in Erchin, 30b learns this from "u'Matza K'dei Ge'ulaso" in Pasuk 26. See Torah Temimah, note 126.
What are the implications of "Ad Sh'nas ha'Yovel"?
What is the connection between "Veyatza ba'Yovel" and "ve'Shav la'Achuzaso"?
Erchin, 29a: The comparison teaches us that the Dinim concerning the redemption of inherited fields only applies when the Yovel is in effect. 1
See Torah Temimah, note 135.
What are the implications of the word "Veshav la'Achuzaso"?
Erchin, 14b: On the one hand incorporates rocky land, in which one cannot plant, but not if one sold trees, which do not revert to him if he did not redeem them before the Yovel arrived.
What happens to a field that the purchaser declared Hekdesh when the Yovel arrives?
Sifra: It too, goes out in the Yovel (since the purchaser, who only had a temporary lease on the land, did not have the authority to declare it permanently Hekdesh
Why does the Torah permit the owner to redeem his field until the Yovel?
Ramban and Moshav Zekenim (both on Pasuk 29): Because a field is one's source of income, which is indispensable.