Mostly in the Pastorals, but also in Rom 12:8; 1Th 5:12. The participle means placed in front. Here in a general sense, but in 1Th 1:5 of church authorities, but only functionally, not as a title of specially appointed officers. It is characteristic of the loose and unsettled ecclesiastical nomenclature of the apostolic age.
Having in subjection (ἔχοντα ἐν ὑποταγῇ)
The phrase is unique in N.T. Ὑποταγή subjection is a Pauline word: see 2Co 9:13; Gal 2:5. olxx.