The operations of the Assyrian war are circumstantially related by Ammianus (xxiv. 2, 3, 4, 5), Libanius (Orat. Parent. c. 112-123, p. 335-347), Zosimus (1. iii. [c. 18] p. 168-180), and Gregory Nazianzen (Orat. iv. p. 113, 144). The 'military' criticisms of the saint are devoutly copied by Tillemont, his faithful slave.