Proverbs 23:1

When you sit to eat with a ruler, you shall surely observe what [is] before you,

Genesis 43:32-34

And they served him by himself, and them by themselves, and the Egyptians who were eating with him by themselves, for Egyptians {could not dine} with Hebrews, because that [was] a detestable thing to Egyptians.

Jude 1:12

These are the ones feasting together without reverence, hidden reefs at your love feasts, caring for themselves, waterless clouds carried away by winds, late autumn trees without fruit, twice dead, uprooted,

Treasury of Scripture Knowledge

Summary

When thou sittest to eat with a ruler, consider diligently what is before thee:

General references

Bible References

General references

Genesis 43:32
And they served him by himself, and them by themselves, and the Egyptians who were eating with him by themselves, for Egyptians {could not dine} with Hebrews, because that [was] a detestable thing to Egyptians.
Jude 1:12
These are the ones feasting together without reverence, hidden reefs at your love feasts, caring for themselves, waterless clouds carried away by winds, late autumn trees without fruit, twice dead, uprooted,