appeared.App-106. an angel. For the frequent references to angels in Luke, see Luk_1:26; Luk_2:9, Luk_2:13, Luk_2:21; Luk_12:8; Luk_15:10; Luk_16:22; Luk_22:43; Luk_24:4, Luk_24:23. Also frequently in Acts.
on = at. Greek ek.App-104.
the right side = the propitious side. Compare Mat_25:33. Mar_16:5. Joh_21:6.
the altar of incense. See Exo_30:1-10; Exo_37:25-28. 1Ki_7:48