MEDIÆVAL HYMNS.
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of the earthly Life of our Lord: the wings of the Apostles set forth their knowledge of His Eternal Deity. And again: as four wheels must necessarily keep time together, so there is the most perfect concord between the narrations of the Evangelists.
The river that was parted, and became into four heads, is explained of Christ, the various acts of Whose life on earth are divided between the four Evangelists. Mediæval symbolism represents S. Matthew by Gihon, S. Mark by Tigris, S. Luke by Euphrates, and S. John by Pison.
