17. παρακαλέσαικτλ.] For παρακαλεῖν see 1 Thessalonians 2:11; 1 Thessalonians 3:2 notes, and for στηρίζειν see 1 Thessalonians 3:2 note. Παντί and ἀγαθῷ refer to both the intervening nouns (cf. v. 9), and the whole expression is of the most general character ‘ whatever you may do or say,’ any attempt to limit λόγῳ to specific Christian doctrine being quite out of place.