Proverbs 23:6-8

23:6 Do not eat the food of a stingy person,

do not crave his delicacies;

23:7 for he is like someone calculating the cost in his mind.

“Eat and drink,” he says to you,

but his heart is not with you;

23:8 you will vomit up the little bit you have eaten,

and will have wasted your pleasant words.