2 Thessalonians 2:15
Therefore <686> <3767>, brethren <80>, stand fast <4739> (5720), and <2532> hold <2902> (5720) the traditions <3862> which <3739> ye have been taught <1321> (5681), whether <1535> by <1223> word <3056>, or <1535> <1223> our <2257> epistle <1992>.
ἄρα οὖν, ἀδελφοί, στήκετε, καὶ κρατεῖτε τὰς παραδόσεις ἃς ἐδιδάχθητε εἴτε διὰ λόγου εἴτε δι’ ἐπιστολῆς ἡμῶν.