In the past, I blogged on the use of a particular idiom that occurs in 1Ti 4.16:

Keep a close watch on yourself and on the teaching. Persist in this, for by so doing you will save both yourself and your hearers.

I blogged about this in three previous posts (that I can find) where I'd noticed the same idiom appearing in some of the writings of the Apostolic Fathers:

• The Responsibility of the Teacher (cf. 2Cl 10.5)
• 2 Clement and "double" (cf. 2Cl 15.1; 2Cl 19.1)
• Ignatius to the Ephesians and "double" (cf. IgEph 16.1-2)

Well, I've been poking through my latest acquisition, and I came across a document entitled The Life of Polycarp. I've heard of this but never had the opportunity to read it. Lightfoot doesn't consider it genuine by any stretch. He thinks it was written in the middle of the fourth century and as such is a witness to ecclesiastical stuff a-goin' on back then. He included a transcription of the Greek, with apparatus and notes and also an English translation.*

And there it was. §XXV.

The Greek and the translation are from Lightfoot (Part II, Vol. II, §2, pp. 1038 [Greek] and 1080 [English]), any typos are mine.

* It's almost superfluous to mention, but Lightfoot was a stud.