Shared ground
Proverbs 23:4–8 treats two “attractive offers” that can trap a person: wealth that looks secure and a meal that looks generous. The passage’s explicit claims are straightforward: don’t wear yourself out to get rich; riches can vanish suddenly; don’t eat the food of a “stingy-eyed” person; such a host may speak warmly while internally calculating the cost; the outcome can be deep regret and wasted polite words.
A major theme is restraint—especially when someone feels confident in their own “wisdom” about money. The teacher assumes that desire can cloud judgment: setting one’s eyes on riches (vv. 4–5) and craving delicacies (vv. 6–7) are parallel dangers.
Where interpretation differs
Some interpreters hear v. 5 (“that which is not”) mainly as “wealth is not real,” stressing its emptiness as a life-foundation. Others take it as “wealth doesn’t last,” stressing instability rather than unreality. Both fit the eagle image of sudden disappearance.
In vv. 6–8, interpreters also differ on what exactly is at stake at the stingy person’s table. Some emphasize emotional harm and humiliation: the guest realizes too late the welcome was insincere. Others emphasize social danger: accepting the meal entangles the guest in uncomfortable obligation or leverage.
Finally, the “vomit” line (v. 8) is read by some as a literal threat (the meal turns your stomach) and by others as a graphic picture of disgust and regret.
Why the disagreement exists
The passage uses compressed poetry and vivid images. Phrases like “that which is not” and “vomit up” can be understood at different levels (literal, social, moral), and the saying “as he thinks about the cost, so he is” (v. 7) can be taken as a general statement about character or as a specific comment about this host’s calculating mindset in the moment.
What this passage clearly contributes
These proverbs present wisdom as realism about hidden instability and hidden motives. Explicitly, they teach that riches are not a safe object of fixation (vv. 4–5) and that spoken hospitality can mask an ungenerous heart (vv. 6–7). Theologically by inference, they support Proverbs’ broader portrayal that wise living requires discernment about what appears desirable, because appearances (wealth on the horizon; generosity at a table) may not match what is truly there (riches “fly away”; a host’s heart “is not with you”). Proverbs 23:1–3 nearby reinforces the same concern about appetite and social settings.