The Jews would have considered themselves polluted by eating with people of another religion, or with any who were ceremonially unclean or disreputable-as with Samaritans, John 4:9, publicans, Matthew 9:11, or Gentiles, Acts 10:28 Galatians 2:12. Eating together was an established token of mutual confidence and friendship, a pledge of friendly relations between families, which their children were expected to perpetuate. The rites of hospitality were held sacred; and to this day, among the Arabs, a fugitive is safe for the time, if he gains the shelter of even an enemy’s tent. The abuse of hospitality was a great crime, Psalms 41:9.
To "eat" a book, is to make its precepts, promises, and spirit one’s own, Jeremiah 15:16 Ezekiel 3:1 John 4:14 Revelation 10:9. So to eat Christ’s flesh and drink his blood, is to receive him as a Savior, and by a living faith to be imbued with his truth, his Spirit, and his heavenly life, John 6:32-58.
The ancient Hebrews would not eat with the Egyptians (Genesis 43:32). In the time of our Lord they would not eat with Samaritans (John 4:9), and were astonished that he ate with publicans and sinners (Matthew 9:11). The Hebrews originally sat at table, but afterwards adopted the Persian and Chaldean practice of reclining (Luke 7:36-50). Their principal meal was at noon (Genesis 43:16; 1 Kings 20:16; Ruth 2:14; Luke 14:12). The word "eat" is used metaphorically in Jeremiah 15:16; Ezekiel 3:1; Revelation 10:9. In John 6:53-58, "eating and drinking" means believing in Christ. Women were never present as guests at meals (q.v.).
E'ATING, ppr. Chewing and swallowing; consuming; corroding.