Midrasch zu Kohelet 5:13

However, a rich man may destroy himself and his wealth in this world, as it is said: And those rights perish by evil adventure (Eccles. 5:13). Not all who are rich today will be rich tomorrow, nor will all who are poor today be poor tomorrow, as it is said: For God is judge; He putteth down one and lifteth up another (Ps. 75:8).

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7. R. Ze'ira said: Even the ordinary conversation of the people of the Land of Israel is Torah. How is this? A man would say to his neighbour: ‘"Give me charity" [z'kaai bi or izdakai bi {the Hebrew רכי is a corruption}, as if to say]: ‘benefit yourself through me.’ R. Haggai says: [A man would say] "‘Look [sakai] at me;’ look [istakai] at me" [intimating] look at me - what I was, and look at me - what I am [now]. For R. Haggai said in the name of R. Yohanan: It is written, "And those riches perish by evil ways [inyan]" (Ecclesiastes 5:13) - that he [the one being asked] answered the poor man in an evil way [inyan], saying to him: "You do not go to work and [therefore have no food to] eat? See what forelegs! See what legs! See that stomach! See that flesh!’" The Holy One, blessed be He [then] says to him: "Not only have you not given him anything that belongs to you, but what you did give him you gave with an evil eye. Consequently, "If he gives birth to a son, there is nothing in his hand’" (ibid.) of everything he [once] possessed [to bequeath].