13Youὑμεῖςnowδέ,brothersἀδελφοί,notμὴshall grow wearyἐγκακήσητε[in] well-doingκαλοποιοῦντες.
Now you⁺, brothers, should not grow weary [in] well-doing.
καλοποιοῦντες
καλοποιέω
I do well, act honorably, do what is right.