עֲוֺנוֹתֵיכֶ֖ם הִטּוּ־אֵ֑לֶּה וְחַטֹּ֣אותֵיכֶ֔ם מָנְע֥וּ הַטּ֖וֹב מִכֶּֽם׃
אײַערע זינד האָבן אָפּגענײַגט די דאָזיקע, און אײַערע חטאים האָבן פֿאַרמיטן דאָס גוטס פֿון אײַך.
Rabbeinu Bahya
ונתתי מטר ארצכם בעתו, “I will give the rain for your land at its appropriate time.” At the hours when it is most beneficial for newly seeded fields. You will be pleased with the timing of the rain, which, according to our sages in Taanit 22 and 23 will descend at night when it does not interfere with any of your activities. In Leviticus 26,3 the Torah words this blessing somewhat differently, writing “ונתתי גשמיכם בעתם, “I will give your rains at their respective seasons.” Our sages interpret the wording there to mean that the rain will neither be sparse nor excessive. Too much rain soaks the earth so that it does not produce fruit. Another meaning of these words is that the word בעתם, refers to the nights from Tuesday to Wednesday and on Friday nights, periods when everyone is at home. We have a tradition that during the period of Rabbi Shimon ben Shetach this blessing was fulfilled and the rains in Israel descended only on these two nights of the week. As a result, the wheat kernels were as big as kidneys and the barley as big as the pits of the olives, and lentils grew to the size of golden dinars. Our sages used this period to illustrate to what extent sins by the people can reduce the fertility of the Holy Land. They used Jeremiah 5,25 to illustrate their point. The prophet wrote: “it is your iniquities that have diverted these things, your sins have withheld the bounty from you.” We also find that during the reign of Herod when the people were busy with major renovations of the Temple, rain descended only at night so as not to interfere with the work of restoring and enlarging the Temple. On the morning following such rain, the clouds would disperse quickly, the sun would shine and work could proceed without impediment. The people would rise at an early hour and go to work at the Temple site.
Rashi
Sparkle. An expression as in, “They became fat; they became thick עָשְׁתוּ.”46Yirmiyahu 5:28. A thick mass is called עֶשֶׁת,47Alternatively, עשת means sparkle or radiate, as in, “shining [עשות] iron,” in Yechezkeil 27:19. (Metzudas Tzion) masiz in O.F.