Midrash su Ecclesiaste 4:6

When Solomon erected the Temple he prayed: Lord of the Universe, if a man should pray unto You in this Temple for money, and You know that the money will be harmful to him, do not give it to him, but if You should foresee that the money will be beneficial to him, fulfill his plea, as it is said: And render unto every man according to all his ways, whose heart Thou knowest—for Thou, even Thou only, knowest the hearts of the children of men (II Chron. 6:30). Because the wicked in this world are wealthy and dwell in tranquility, the Holy One, blessed be He, will reward them only a little for the good deeds they perform in this world, as it is said: And repayeth them that hate Him to their face (Deut. 7:10). But it is also written: When the wicked spring up as the grass, when all the workers of iniquity do flourish; it is that they may be destroyed for ever (Ps. 92:8). However, in the future, the Holy One, blessed be He, will open his treasure house to his righteous servants in the Garden of Eden, while the wicked, who have eaten the fruits of interest here, will consume their own flesh with their teeth and will be confounded, as it is said: The fool foldeth his hands together and eateth his own flesh (Eccles. 4:5). They will then cry out: Would that we had been workmen and carried burdens on our shoulders, as it is said: Better is a handful of quietness, than both the hands full of labor and striving after the wind (ibid., 6).