Leviticus 26:29
27 “‘If in spite of this you do not obey me but walk in hostility against me, 28 I will walk in hostile rage against you, and I myself will also discipline you seven times on account of your sins. 29 You will eat the flesh of your sons and the flesh of your daughters. 30 I will destroy your high places and cut down your incense altars, and I will stack your dead bodies on top of the lifeless bodies of your idols. I will abhor you. 31 I will lay your cities waste and make your sanctuaries desolate, and I will refuse to smell your soothing aromas.
Lamentations 4:10
8 ח (Khet) Now their appearance is darker than soot; they are not recognized in the streets. Their skin has shriveled on their bones; it is dried up, like tree bark. 9 ט (Tet) Those who die by the sword are better off than those who die of hunger, those who waste away, struck down from lack of food. 10 י (Yod) The hands of tenderhearted women cooked their own children, who became their food, when my people were destroyed. 11 כ (Kaf) The Lord fully vented his wrath; he poured out his fierce anger. He started a fire in Zion; it consumed her foundations. 12 ל (Lamed) Neither the kings of the earth nor the people of the lands ever thought that enemy or foe could enter the gates of Jerusalem.
Notes and References
"... One of the terrible results of a long siege of a walled city was food shortage. It sometimes became so severe that the inhabitants of the city restored to cannibalism (see 2 Kings 6:29). For instance, the Assyrian annals of Ashurbanipal describe his siege of Babylon 650-648 B.C. and the desperation of the starving people who were reduced to cannibalism. There are also a number of Mesopotamian treaties that contain a curse that calls for the violator of the treaty to feed on his own family or his own people (as in the Ashurnirari V’s treaty with Mati’ilu of Arpad). Biblical versions of this type of curse can be found in Leviticus 26:29 and Deuteronomy 28:53-57 ..."
Walton, John H. The IVP Bible Background Commentary: Old Testament (p. 693) InterVarsity Press, 2000