Gerhard and Walther

We through this Sacrament [the Eucharist] are made one body with Christ, and are fed unto eternal life.—Johann Gerhard, Schola Pietatis I:106.

Any Christian who wants to be a spiritual priest must separate himself from the world. He cannot walk through life in a wild, disorderly manner or participate in its vain desires.—C. F. W. Walther, God Grant It!, p. 127.