[2] The later Ecumenical Patriarch of Constantinople, John Chrysostom (r. 398–404), is known to have preached two sermons in the church whose texts survive in the Clavis Patrum Graecorum, entitled In illud Quia quod stultum est dei (CPG 4441.14), which was apparently preached "in the church of Acacius the martyr" (Patristic Greek: ἐν τῇ ἐκκλησίᾳ τῇ ἐπὶ Ἀκακίον τὸν μάρτυρα), and In martres omnes (CPG 4441.15), whose original setting was "in the temple of the holy Acacius" (ἐν τῷ ναῷ τοῦ ἁγίου μάρτυρος Ἀκακίου).
[1] According to Socrates, the augustus Arcadius (r. 383–408) visited a chapel dedicated to Saint Acacius where a walnut tree stood, on which the martyr was supposed to have been hanged.
[1] In Socrates's account, when the emperor visited the building unexpectedly collapsed, but since the crowds gathered outside to meet him in the courtyard where the tree grew, no-one was harmed.
[1][5] This Acacius's existence is recorded by Eusebius of Caesarea's Vita Constantini, a posthumous biography of Constantine, and possibly by the Codex Theodosianus, a collection of laws and rescripts compiled in the reign of Theodosius II (r. 402–450).
[1] The Vita Constantini preserves a letter purportedly written by Constantine to Acacius, addressing him as "most distinguished count (comes) and friend" and despatching him to Mamre in Palestine to replace the existing places of worship there with a Christian building.