Midrasch zu Bamidbar 20:19

Rabbi Yitzḥak began: “Because you did not serve the Lord your God with joy and with gladness of heart, due to abundance of everything, you will serve your enemies…” (Deuteronomy 28:47–48) – had you been worthy, you would have read in the Torah: “You will bring them and plant them in the mountain of Your inheritance” (Exodus 15:17), but now that you are not worthy, you read: “Let all their evil come before You [and do to them as You did to me]” (Lamentations 1:22).³³The term “You will bring them” in the verse in Exodus and the word “come” in the verse in Lamentations have the same root: tav, bet, alef.
Had you been worthy, you would have read in the Torah: “Peoples heard, they were agitated” (Exodus 15:14), but now that you are not worthy, you read: “They heard that I am sighing” (Lamentations 1:21).
Had you been worthy, you would have read in the Torah: “I have seen the affliction of My people that is in Egypt” (Exodus 3:7), but now that you are not worthy, you read: “See, Lord, for I am in distress, my innards burn” (Lamentations 1:20).
Had you been worthy, you would have read in the Torah: “You shall proclaim on this very day” (Leviticus 23:21), but now that you are not worthy, you read: “I called my lovers; [they deceived me]” (Lamentations 1:19).³⁴The word “proclaim” in Leviticus and the word “called” in Lamentations have the same root: kuf, resh, alef.
Had you been worthy, you would have read in the Torah: “Justice [tzedek], justice you shall pursue” (Deuteronomy 16:20), but now that you are not worthy, you read: “The Lord is righteous [tzadik], for I have defied His word” (Lamentations 1:18).
Had you been worthy, you would have read in the Torah: “You shall open your hand [to your brother]” (Deuteronomy 15:11), but now that you are not worthy, you read: “Zion spread its hands, [there is no comforter for it]” (Lamentations 1:17).
Had you been worthy, you would have read in the Torah: “These are the appointed times of the Lord” (Leviticus 23:4), but now that you are not worthy, you read: “For these I weep” (Lamentations 1:16).
Had you been worthy, you would have read in the Torah: “We will ascend on the highway [bamsila]” (Numbers 20:19), but now that you are not worthy, you read: “The Lord trampled [sila] all my mighty” (Lamentations 1:15).
Had you been worthy, you would have read in the Torah: “I broke the bars of your yoke” (Leviticus 26:13), but now that you are not worthy, you read: “The yoke of my transgressions is preserved in His hand” (Lamentations 1:14).
Had you been worthy, you would have read in the Torah: “A perpetual fire shall burn upon the altar” (Leviticus 6:6), but now that you are not worthy, you read: “From on high He sent fire into my bones” (Lamentations 1:13).
Had you been worthy, you would have read in the Torah: “[The Lord your God who goes before you, He shall fight for you according to all that He did for you.…] in the entire path [derekh] that you went” (Deuteronomy 1:30–31), but now that you are not worthy, you read: “May it not befall you, all passersby [ovrei derekh]” (Lamentations 1:12).
Had you been worthy, you would have read in the Torah: “You will eat your bread to satiation” (Leviticus 26:5), but now that you are not worthy, you read: “All its people are sighing, seeking bread” (Lamentations 1:11).
Had you been worthy, you would have read in the Torah: “No man will covet your land” (Exodus 34:24), but now that you are not worthy, you read: “The besieger spread his hand over all its delights” (Lamentations 1:10).
Had you been worthy, you would have read in the Torah: “For on this day he shall atone for you [to purify you]” (Leviticus 16:30), but now that you are not worthy, you read: “Its impurity is on its skirts” (Lamentations 1:9).
Had you been worthy, you would have read in the Torah: “From all your sins you shall be purified before the Lord” (Leviticus 16:30), but now that you are not worthy, you read: “Jerusalem has sinned” (Lamentations 1:8).
Had you been worthy, you would have read in the Torah: “You shall be remembered before the Lord your God” (Numbers 10:9), but now that you are not worthy, you read: “Jerusalem remembered in the days of its affliction” (Lamentations 1:7).
Had you been worthy, you would have read in the Torah: “I will walk in your midst” (Leviticus 26:12), but now that you are not worthy, you read: “All the glory of the daughter of Zion has gone” (Lamentations 1:6).
Had you been worthy, you would have read in the Torah: “The Lord will place you as a head [lerosh]” (Deuteronomy 28:13), but now that you are not worthy, you read: “Its foes are ascendant [lerosh], its enemies are tranquil” (Lamentations 1:5).
Had you been worthy, you would have read in the Torah: “Three times a year [shall all your males appear before the Lord your God…on the festival]” (Deuteronomy 16:16), but now that you are not worthy, you read: “The ways of Zion mourn [without festival pilgrims]” (Lamentations 1:4).
Had you been worthy, you would have read in the Torah: “You will dwell securely” (Leviticus 26:5), but now that you are not worthy, you read: “Judah has been exiled in affliction” (Lamentations 1:3).
Had you been worthy, you would have read in the Torah: “It is a night of watching of the Lord” (Exodus 12:42), but now that you are not worthy, you read: “It weeps at night” (Lamentations 1:2).
Had you been worthy, you would have read in the Torah: “How [eikha] can I bear alone” (Deuteronomy 1:12), but now that you are not worthy, you read: “How [eikha] does…sit solitary?” (Lamentations 1:1).