Whereupon (εν οις). "In which things" (affairs of persecution), "on which errand." Cf. Acts 24:18. Paul made them leave Palestine (Acts 11:19) and followed them beyond it (Acts 9:2).

With the authority and commission (μετ' εξουσιας κα επιτροπης). Not merely "authority" (εξουσια), but express appointment (επιτροπη, old word, but here only in N.T., derived from επιτροπος, steward, and that from επιτρεπω, to turn over to, to commit).