Why is the Lord's Supper called the Lord's Supper?

The term 'Lord's Supper' signifies that this ordinance was given by Christ alone, reflecting His authority as the one who establishes commands within His church. This is highlighted in Luke 22:15, where Jesus expresses His desire to eat the Passover with His disciples, transitioning the practice into a memorial of His impending sacrifice. The designation also emphasizes that the supper is set apart for His people, the guests at His table, who have been redeemed and called by Him. Recognizing the supper as the Lord's reinforces its meaning as a sacred act of remembrance and communion.