I have set (dedwka). Perfect active indicative of didwmi, "I have given" (a gift of Christ, this open door). See Luke 12:51 for a like use of didwmi. A door opened (quran hnewigmenhn). Perfect (triple reduplication) passive predicate participle of anoigw (verse Luke 7 ) accusative feminine singular. The metaphor of the open door was a common one ( John 10:7-9 ; Acts 14:27 ; 1 Corinthians 16:9 ; 2 Corinthians 2:12 ; Colossians 4:3 ; Revelation 3:20 ; Revelation 4:1 ). Probably it means here a good opportunity for missionary effort in spite of the Jewish hostility. Which (hn--authn). Pleonastic vernacular and Hebrew repetition of the personal pronoun authn (it) after the relative hn (which). Direct reference to the statement in verse Revelation 7 . That (oti). This conjunction resumes the construction of oida sou ta erga (I know thy works) after the parenthesis (idou--authn, Behold--shut). A little power (mikran dunamin). Probably "little power," little influence or weight in Philadelphia, the members probably from the lower classes ( 1 Corinthians 1:26 ). And didst keep (kai ethrhsa). "And yet (adversative use of kai) didst keep" (first aorist active indicative of threw) my word in some crisis of trial. See John 17:6 for the phrase "keeping the word." Didst not deny (ouk hrnhsw). First aorist middle indicative second person singular of arneomai. The issue was probably forced by the Jews (cf. John 2:9 ), but they stood true.