Therefore, brethren, stand fast, and hold the traditions which ye have been taught, whether by word, or our epistle.
So then, brothers and sisters, stand firm and hold fast to the teachings we passed on to you, whether by word of mouth or by letter.
Ἄρα οὖν, ἀδελφοί, στήκετε, καὶ κρατεῖτε τὰς παραδόσεις ἃς ἐδιδάχθητε, εἴτε διὰ λόγου, εἴτε δι' ἐπιστολῆς ἡμῶν.
Ara oyn, adelphoi, stēkete, kai krateite tas paradoseis as edidachthēte, eite dia logoy, eite di' epistolēs ēmōn.