How do we know the significance of the Lord's Supper?

The Lord's Supper, as instituted by Jesus, is a profound means of grace and connection for believers. In 1 Corinthians 10:16, it is stated, 'The cup of blessing which we bless, is it not the communion of the blood of Christ? The bread which we break, is it not the communion of the body of Christ?' This sacrament is a declaration of the new covenant and serves as a reminder of Christ's atoning work, which brings all believers into a unified body of Christ. When participating in the Lord's Supper, the church acknowledges the everlasting covenant established by God's sovereign grace, allowing us to remember not just the sacrifice of Christ, but also the communal life we share in Him.