How do we know the Lord's Supper is instituted by Christ?

The institution of the Lord's Supper is firmly rooted in the accounts provided in the Gospels, particularly during the Last Supper when Jesus shared bread and wine with His disciples. In Matthew 26, Jesus explicitly states the significance of the bread and wine as symbols of His body and blood, establishing a new covenant through His sacrifice. The consistent recounting of this event by the Apostle Paul in 1 Corinthians further solidifies its authority as an ordinance mandated by Christ. This act was not merely a moment in time but serves as a continuous reminder for believers to remember Christ’s immense sacrifice for humanity. Therefore, the Lord's Supper remains a central practice of faithful worship and remembrance as established by Christ Himself.