Commento su Esodo 34:21

בחריש ובקציר IN PLOUGHING TIME AND IN HARVEST [THOU SHALT LEAVE OFF] — Why are ploughing and harvesting specially mentioned (since all work is forbidden on Sabbath)? There are some of our Rabbis who say that this refers to ploughing in the year preceding the Sabbatical year which ploughing passeth into (produces its first fruits in) the seventh year and to harvesting grain that has reached one-third of its maturity during the Sabbatical year which harvesting actually goeth forth into (takes place in) the eighth year, that following the Sabbatical year; and that this statement is intended to teach you that one must add part of the secular time to the holy time (i. e. that one must apply to a certain period before the beginning and after the termination of the Sabbatical year the laws applicable to that year in order to prevent its desecration). Thus, the following is what it (this verse) means: “Six days thou mayest work, but on the seventh day thou shalt rest”; but even with regard to the six days’ work which I have permitted you there are years when ploughing and harvesting are forbidden. This must be the meaning, referring to ploughing in the sixth year and harvesting in the seventh, and it cannot refer to the seventh year itself for it is unnecessary to make any mention of ploughing and harvesting in the seventh year being forbidden, for it is already said (Leviticus 25:4) “[But in the seventh year …] thou shalt neither sow thy field [nor prune thine vineyard]”! Others, however, hold that Scripture in this part of the text, is only speaking of the ordinary Sabbath day, as in the first part, and ploughing and harvesting which are specially mentioned in it as being forbidden on the Sabbath are mentioned to suggest to you the following: What is the characteristic of ploughing? It is an optional act (no such work being commanded anywhere in the Law)! So, too, is harvesting forbidden on Sabbath only when it constitutes an optional act! There is, therefore, excluded the harvesting of the barley for the “Omer” (cf. Leviticus 23:10: ye shall reap the harvest thereof) which is obligatory and which therefore supersedes the Sabbath (occasions a suspension of the Sabbath laws) (Rosh Hashanah 9a).

IN PLOWING TIME AND IN HARVEST THOU SHALT REST. In line with the plain meaning of Scripture He mentioned plowing and harvesting [as works forbidden on the Sabbath] because they are the mainstay of man’s life. He mentioned the Sabbath between the holidays, putting it next to the feast of unleavened bread and the sanctification of the firstborn,⁵²⁸Verses 19-20. because they are all a reminder of the act of Creation, for in the exodus from Egypt itself there is a sign and wonder referring to the Creation, as I have explained in the Ten Commandments.⁵²⁹Above, 20:2. Besides, Scripture states that in the Sabbath likewise there is a reminder of the exodus from Egypt, as it says in the second Ten Commandments, And thou shalt remember that thou wast a servant in the land of Egypt, and the Eternal thy G-d brought thee out thence [by a mighty hand and by an outstretched arm]; therefore the Eternal thy G-d commanded thee to keep the Sabbath-day.⁵³⁰Deuteronomy 5:15. There I will explain it, with the help of G-d, blessed and exalted be He.

ששת ימים תעבוד וביום השביעי תשבות, success of your activities during the six days of the week also is materially affected by whether and how you observe the Sabbath.