Jesus was speaking to the church of Laodica also known as the Lukewarm church. They would go about their religious duties but not give their hearts to Jesus.
Dining often is done with people we have relationships with. In this verse Jesus is reaching out to the religious person to hear him and fellowship with him as a friend or brother. In other words he wants a relationship with us.
Worshiping a Good God
At the time of Isaiah writing this verse, God had already done so many things for the nation of Israel. He brought them out of Egypt, rescued them from some evil nations and kings, blessed them with some great leaders (and challenged them with some not-so-good ones). And that was just the beginning of His providence and provision. Israel had a lot to be thankful for.
As readers of this passage now, thousands of years in the future all across the globe, we can confidently say that God has done and continues to do wonderful things, especially sending His Son, Jesus, to die and rise again, saving us and giving us eternal life.
Even in the face of unimaginable tragedies, fear, anxiety, depression, and whatever else the devil throws at us, we still have a lot to be thankful for. Because God will never stop doing wonderful things—that’s just who He is. And He who called us is faithful (1 Thessalonians 5:24 NIV).