Jesus preached at the Last Supper

In thinking about the relationship between word and sacrament, it is a new thought to me that it might be argued on the basis of the Johannine farewell discourses that Jesus "preached" at the Last Supper.

G. W. Bromiley provoked this idea:

As in the case of baptism, it is thought necessary that Holy Communion should be brought into direct relationship with the word. The sacrament as a visible word needs the audible word to declare its meaning and make explicit its summons. Thus the service of Communion will include not merely a reading of the account of the original institution, but also other Scriptures, exhortation, and preaching [footnote: Cf. the Johannine discourses at the institution]. The inveterate tendency in some churches to divorce the sacrament from the word, or at least from the living word in the form of preaching and translated Scripture, is an obvious indication that the real meaning, purpose, and power of the sacrament are not yet perceived.

Sacramental Teaching and Practice in the Reformation Churches (Grand Rapids, Eerdmans, 1957) p77