Acts 26:12 New English Translation

¹²“While doing this very thing,^[a] as I was going^[b] to Damascus with authority and complete power^[c] from the chief priests,

Acts 26:12 tn Grk “in which [activity].” Due to the length and complexity of the Greek sentence, a new sentence was started at the beginning of v. 12 in the translation. The referent of the relative pronoun (“which”) was specified as “this very thing” for clarity.
Acts 26:12 tn Grk “going.” The participle πορευόμενος (poreuomenos) has been taken temporally.
Acts 26:12 tn L&N 37.40 s.v. ἐπιτροπή states, “the full authority to carry out an assignment or commission—‘authority, complete power.’ πορευόμενος εἰς τὴν Δαμασκὸν μετ᾿ ἐξουσίας καὶ ἐπιτροπῆς τῶν ἀρχιερέων ‘going to Damascus with authority and complete power from the high priests’ Ac 26:12. In Ac 26:12 the combination of ἐξουσία and ἐπιτροπή serves to reinforce the sense of complete authority.”

New English Translation (NET)