Jeremiah 12:13 Philosophy

זָרְע֤וּ חִטִּים֙ וְקֹצִ֣ים קָצָ֔רוּ נֶחְל֖וּ לֹ֣א יוֹעִ֑לוּ וּבֹ֙שׁוּ֙ מִתְּבוּאֹ֣תֵיכֶ֔ם מֵחֲר֖וֹן אַף־יְהוָֽה׃ (ס)

They have sown wheat, and have reaped thorns; they have put themselves to pain, they profit not; be ye then ashamed of your increase, because of the fierce anger of the LORD. .

Read Jewish philosophical commentary on Jeremiah 12:13: and classical philosophical sources.