Deuteronomy 28:53

Thou shalt eat the fruit of thine own body The stoutest and most obstinate resistance will avail you nothing; all the advantage you will gain by it will be to suffer such long and pressing straits by the siege as will force you, after thousands have perished with hunger, to feed upon the flesh of one another. This prediction was repeatedly fulfilled, especially when Vespasian and his son Titus begirt Jerusalem so closely that the besieged were reduced to a most grievous famine, which forced them, after they had eaten up their horses and other creatures, to eat even their own children, whom parents, who had used to live delicately, Moses here foretels, should themselves eat up privately, and let none share with them.