7. οὐγὰρἐκάλεσενκτλ.] The emphasis lies on ἐκάλεσεν (cf. 2:12 note), the thought of the definite Divine call being introduced as an additional reason for the foregoing warning, or, perhaps, in more immediate connexion with the preceding clause, as a justification of the vengeance there threatened. The interchange of the prepositions ἐπί and ἐν is significant, the former pointing to the object or purpose of the call (cf. Galatians 5:13, Ephesians 2:10, Sap. 2:23 ὁθεὸςἔκτισεντὸνἄνθρωπονἐπʼ ἀφθαρσίᾳ), the latter to its essential basis or condition (cf. Ephesians 4:4 with Abbott’ s note), ἀγιασμός being used in the same active sense as in vv. 3, 4.