2having witnessedἐποπτεύσαντεςtheτὴνinἐνrespectφόβῳpureἁγνὴνconductἀναστροφὴνof youὑμῶν.
having witnessed your⁺ respectful, pure conduct,
ἐποπτεύσαντες
ἐποπτεύω
I am an eyewitness of, behold, look upon.