Proverbs 23:8

The morsel [which] thou hast eaten, shalt thou vomit up
It shall turn in thy stomach, thou shall not be able to keep it, when thou understandest thou art not welcome; or thou wilt wish thou hadst never eaten a bit, or that thou couldest vomit up what thou hast; so disagreeable is the thought of being unwelcome, or when this appears to be the case; and lose thy sweet words;
expressed in thankfulness to the master of the feast, in praise of his food, in pleasantry with him, and the other guests at table; all which are repented of when a man finds he is not welcome.