What do we learn from "Nivhal la'Hon Ish Ra Ayin [v'Lo Yeda Ki Chaser Yevo'enu]"?
Rashi: He hastens to increase wealth, and steals Terumos and Ma'aseros.
Peninim mi'Shulchan ha'Gra (Bereishis 23:16, from Bereishis Rabah 58:7): This refers to Efron. He did not know that his name will be written deficient 1 due to [his greed].
Malbim: Ra Ayin does not want to influence on others. He is frantic for wealth.
Now that it is written Chaser, its Gematriya is the same as Ra Ayin (Gur Aryeh Bereishis 23:16), i.e. 400 (the price he charged).
What is the meaning of "Ki Chaser Yevo'enu"?
Rashi: Deficiency will come to him. His work will be cursed.
Malbim #1: Resha'im will come upon him and plunder his money. Even an Ish Emunah does not stand up against pressure of [lack of] bread, and all the more so commoners.
Malbim #2: What he caused Aniyim to lack via his stinginess - he stored Peros [to jack up] prices to gather wealth, and via this Aniyim lacked food - this will come upon him, and they will plunder his wealth.
Malbim #3: Chazal said (Kesuvos 66b) 'salt of money is Chaser' (diminishing one's money via giving to Tzedakah, this preserves it). Wealth comes only via Chisaron, and not via stinginess.
