Everything is good in its season/ a stitch in time saves nine
It is good to act at the most appropriate time.
("A man’s joy is in the answer of his mouth; and a word in its time, how good!" - Proverbs 15:23, and likewise: "A word in its time, how good. Since we have recounted the manner of his service in the sanctuary, let us mention the place of his service in the sanctuary" - S.Y. Agnon, The Tale of the Scribe, volume 3)
Translation
Expression (Hebrew)
דָבָר בְּעִתּוֹ מַה טּוֹב
Definition (Hebrew)
טוֹב לַעֲשׂוֹת מַעֲשֶׂה בָּעִתּוּי הַמַּתְאִים בְּיוֹתֵר.
("שִׂמְחָה לָאִישׁ בְּמַעֲנֵה פִיו וְדָבָר בְּעִתּוֹ מַה טּוֹב"- מִשְׁלֵי טוּ כג, וְכֵן:"וְדָבָר בְּעִתּוֹ מַה טּוֹב. הוֹאִיל וְסִפַּרְנוּ דֶּרֶךְ עֲבוֹדָתוֹ בַּקֹּדֶשׁ נַזְכִּיר מְקוֹם עֲבוֹדָתוֹ בַּקֹּדֶשׁ"- שַׁ"י עַגְנוֹן/ אַגָּדַת הַסּוֹפֵר, ג)