John x. 7, 9.  Cyril calls Christ a “spiritual,” or “rational” (λογική) door, and applies the same term to His sheep, below.  Origen (In Evang. Joh. Tom. i. cap. 29):  Θύρα ὁ Σωτηρ ἀναγέγραπται, ibid. φιλάνθρωπος δὲ ὢν…ποιμὴν γινεται.