Ignatius's Letters to the Ephesians, the Romans, the Smyrnaeans, and Polycarp
Although Ignatius lived in the early second century, whether he wrote the letters attributed to him has been in doubt for many years.
There are three revisions of the letters attributed to Ignatius: the long recension, the middle recension and the short recension. The long recension was created in the fourth century and consists of thirteen letters, six of which are spurious. The short recension is a Syriac abridgment of the letters to the Ephesians, the Romans and Polycarp, but only a few fragments are preserved. The middle recension consists of seven letters generally recognised as authentic, but the only extant copy of the middle recension (codex Mediceo-Laurentianus) is dated to the eleventh century, 900 years after Ignatius wrote his letters, and was subject to interpolation and omission.
It is hardly surprising with so much evidence of changing the text that some verses would reflect the theology of the fourth century and beyond.