But Joshua said to the people, “You are not able to serve the LORD, for he is a holy God. He is a jealous God; he will not forgive your transgressions or your sins. If you forsake the LORD and serve foreign gods, then he will turn and do you harm and consume you, after having done you good.” And the people said to Joshua, “No, but we will serve the LORD.” Then Joshua said to the people, “You are witnesses against yourselves that you have chosen the LORD, to serve him.” And they said, “We are witnesses.” He said, “Then put away the foreign gods that are among you, and incline your heart to the LORD, the God of Israel.” And the people said to Joshua, “The LORD our God we will serve, and his voice we will obey.” (Joshua 24:19–24, ESV)
This is not just Jewish people, boys and girls. We who have chosen the Lord to serve Him are supposed to put away foreign gods that are among us (Easter for instance) and incline our hearts to the LORD the God of Israel. The “Lord’s Supper” is Passover.
Now as they were eating, Jesus took bread, and after blessing it broke it and gave it to the disciples, and said, “Take, eat; this is my body.” And he took a cup, and when he had given thanks he gave it to them, saying, “Drink of it, all of you, for this is my blood of the covenant, which is poured out for many for the forgiveness of sins. (Matthew 26:26–28, ESV)