Proverbs 23:8

⁶ Do not eat the bread of a stingy man, and do not crave his delicacies;

⁷ for he is keeping track, inwardly counting the cost. “Eat and drink,” he says to you, but his heart is not with you.

You will vomit up what little you have eaten and waste your pleasant words.

⁹ Do not speak to a fool, for he will despise the wisdom of your words.

¹⁰ Do not move an ancient boundary stone or encroach on the fields of the fatherless,

Do read the surrounding verses too, because the context often says more than a single verse.

Compare

BSB: You will vomit up what little you have eaten and waste your pleasant words.
KJV: The morsel which thou hast eaten shalt thou vomit up, and lose thy sweet words.
WEB: You will vomit up the morsel which you have eaten and waste your pleasant words.
ASV: The morsel which thou hast eaten shalt thou vomit up, And lose thy sweet words.
DARBY: Thy morsel which thou hast eaten must thou vomit up, and thou wilt have wasted thy sweet words.
BLB: Your morsel [that] you have eaten, you will vomit it up, and you will ruin your pleasant words!

ÅB: Den matbit som du har ett, den vil du spy ut, og du har kastet bort dine vakre ord.
OTB: Du vil kaste opp biten du har spist og sløse bort dine komplimenter.
B1930: Den matbit som du har ett, den vil du spy ut, og du har spilt dine vakre ord.