תְּיַסְּרֵ֣ךְ רָעָתֵ֗ךְ וּמְשֻֽׁבוֹתַ֙יִךְ֙ תּוֹכִחֻ֔ךְ וּדְעִ֤י וּרְאִי֙ כִּי־רַ֣ע וָמָ֔ר עָזְבֵ֖ךְ אֶת־יְהוָ֣ה אֱלֹהָ֑יִךְ וְלֹ֤א פַחְדָּתִי֙ אֵלַ֔יִךְ נְאֻם־אֲדֹנָ֥י יְהוִ֖ה צְבָאֽוֹת׃
你自己的惡必懲治你，你的背道必責備你。你要知道、要看見：你離棄永恆者你的上帝，心中也沒有對我的敬畏，這是何等邪惡、何等苦澀的事！這是主萬軍的永恆者說的。
Duties of the Heart
The evil inclination then forced them to suffer the pain of [being tossed by] its waves. This world rules over them and stops up their ears and shuts their eyes. There is not one of them who does not occupy himself with indulging in its pleasures whenever he can reach it and an opportunity presents itself. This is his torah and his religion, until he is led completely astray from his G-d, as written: "Your own wickedness shall correct you, and your backsliding shall reprove you... [know that it is evil and bitter that you have forsaken the L-ord your G-d]" (Yirmiya 2:19).
Sefer HaIkkarim
Chapter six maintains that human acts do not all lead to the realization of the purpose of man. The difficulty is pointed out of drawing a line of demarcation between those acts which do and those which do not lead to human perfection. It is explained how this can be done and it is maintained that the joy or the sorrow resulting from an act is a good criterion, as is proved from the verses Jeremiah 2, 19 and Psalm 119, 14.