Musar su Levitico 19:23

“Three years it shall be forbidden (arelim) for you, not to be eaten” (Leviticus 19:23). Orlah is applicable outside of the Land [of Israel] and it is forbidden in benefit. And anything that is forbidden in benefit is forbidden to give to a [gentile]. And the fourth year vineyard is forbidden in benefit, when not redeemed. And we may not redeem it until its fruits have reached the season of the tithes. So when is the season of the tithes? From the time that the fruits have been completed, like the matter that our Rabbis, may their memory be blessed, learned (Maasrot 1:2), “From when are the fruits obligated in tithes?”

ג' שנים יהיו לכם ערלים לא יאכל . During these first three years the forces of impurity predominate in a tree; it is therefore called "uncircumcised." Anyone who would enjoy the fruit of such a tree grown during this period would be considered as if enjoying the forces of impurity. It therefore behooves him to remove such forces from "G–d's vineyard," i.e. the Jewish people. Once the three years have passed the same tree becomes pure and a source of sanctity. This is not as strange a concept as it seems at first glance, since we have the halachic ruling that the hymen of a girl under the age of three which has been pierced will heal and grow back. If the penetration occurred after her third birthday this permanently deprives her of her status as a virgin. We can deduce from this that during the first 3 years of a girl's life negative forces do not exert a permanent influence upon her. The same is true of the negative forces which dominate the tree during these years.

In 19,23, the Torah legislates that trees planted in ארץ ישראל undergo a period of three years of ערלה, a period similar to that of a male child before it has been circumcised. We have understood Torah legislation as an attempt to rectify errors committed by Adam , Noach, etc, who have been responsible for a withdrawal of G–d's presence and for damage to G–d's universe. Noach became drunk because he drank prematurely from a vineyard which had not yet reached its fifth year. In his comments on Rav Alfassi at the beginning of the sixth chapter of Berachot, Rabbeinu Yonah quotes a ruling that of all the trees which grow in the diaspora only the vineyard is subject to the נטע רבעי legislation because whenever there is a dispute concerning whether a certain legislation applies, we decide in favor of the more lenient viewpoint when it concerns applicability of the law in the diaspora. He supports this ruling with the argument that wherever teachers of the Mishnah disagree regarding the הלכה, we adopt the more lenient view where practice in the diaspora is concerned. In the case of wine, there is a special requirement to sanctify wine, i.e. to bring it to the level of sanctity that existed prior to the sin in the garden of Eden. The ruling is supported by similar sounding words ערלתו [even when the context is totally different. This exegetical method is known as גזרה שוה. Ed.] on separate occasions.