This beautiful song has become widely recognized as one of the finest recent Lord's Supper hymns, primarily because of its use of biblical images (see Scripture references). The stanzas introduce each of these images in turn, and the refrain repeatedly brings us back to the hymn's controlling thought: God's "gift of finest wheat" is Christ, "the bread of life" (Ps. 81:16; John 6:35). The solid theological text aptly presents many of the central meanings of the sacrament of the Lord's Supper.
Bert Polman, Psalter Hymnal Handbook
The “heavenly food” referenced in stanza 2 reinforces the anticipation of being nurtured and nourished at the Lord’s Table. Heidelberg Catechism, Lord’s Day 28, Question and Answer 75 is a reminder that Christ “nourishes and refreshes my soul for eternal life,” and Lord’s Day 29, Question and Answer 78 assures us that the bread and wine “are the true food and drink of our souls for eternal life.”