12. ἐταράχθη. Such is the effect always recorded of these supernatural appearances. See Luk 2:9; Jdg 13:22; Dan 10:7-9; Eze 1:28; Mar 16:8; Rev 1:17.
ἐπέπεσεν ἐπ' αὐτόν. Comp. Gen 15:12. The more classic construction would have been αὐτῷ. But as a language becomes older it gets less and less synthetic, and multiplies the epexegetic use of pronouns, prepositions, &c.