This article analyses Paul's use of δοκιµάζειν in 1 Thessalonians 5:21 within the context of verbs for discernment (δοκιµάζειν, πειράζειν, διακρίνειν and their cognates). It discusses Paul's use of these verbs against the background of discernment in the Septuaginta. Paul's own understanding of disc...