In Kings, table-companionship tends to relate to politics. Who you dine with is who you deal with. Business transactions today, are commonly done with meals and drinks. Wedding receptions almost always involve meals. Dates involve coffee, cocoa, or wine.
When Adonijah calls together the people to give him support, those not in attendance are as important as the guests who are there (1 Kings 1:8-12)
Adonijah conferred with Joab son of Zeruiah and with Abiathar the priest, and they gave him their support. But Zadok the priest, Benaiah son of Jehoiada, Nathan the prophet, Shimei and Rei and David’s special guard did not join Adonijah.
Adonijah then sacrificed sheep, cattle and fattened calves at the Stone of Zoheleth near En Rogel. He invited all his brothers, the king’s sons, and all the royal officials of Judah, but he did not invite Nathan the prophet or Benaiah or the special guard or his brother Solomon.
He does not invite Nathan, David’s close prophet, nor Benaiah, one of David’s mighty men, the guard most closely associated with the king, or Solomon, the other candidate to become king. In fact, he has excluded them.
So, David gathers a meal with all those excluded from Adonijah’s feast, including Bathsheba and Zadok. In doing so he politically aligns himself. And likewise, when we eat with church, taking communion, we too are politically aligning ourselves.