An excerpt from the Introduction: "In these Words we have a plain and full Description of the Lord's Supper, a it was instituted by our Lord Jesus Christ himself and ordained to stand and continue in the Church to the End of Time. The Occasion of them was this; The Holy Apostle had before delivered to the Corinthians the naked Institution: but tho there had not passed many Years from the Birth of this Ordinance, and but a little Time since the Foundation of the Church of Corinth; yet now in this Church (a Church of great Renown for Eminence of Gifts and Graces) this most sacred and solemn Ordinance was darkened and disguised by several grand Abuses and gross Corruptions, that attended the Celebration of it; as may be seen from Verse 20, down to the Words. And the Apostle, for the Reformation of these Abuses, and Purging out of these Corruptions, thus early crept into this Ordinance, and setting it right again among them, according to Christ's own Institution, here repeats the institution itself; leads them back to the original Rule; and shews them, how Christ instituted the Ordinance; how Christ celebrated it; and how Christ left it to be observed and administered in the Church; that so, from our Lord's own Appointment, they might see how far they had swerved: how they ought to celebrate it; and (rejecting their former Errors and Corruptions) return, again to the pure and primitive Institution and Pattern.