12Ἐρωτῶμεν δὲ ὑμᾶς, ἀδελφοί, εἰδέναι τοὺς κοπιῶντας ἐν ὑμῖν, καὶ προϊσταμένους ὑμῶν ἐν κυρίῳ, καὶ νουθετοῦντας ὑμᾶς,