{I have set} (ded(936b)a). Perfect active indicative of
did(936d)i, "I have given" (a gift of Christ, this open door). See
 Lu 12:51  for a like use of did(936d)i. {A door opened} (	huran
(886e)e(9369)gmen(886e)). Perfect (triple reduplication) passive predicate
participle of anoig(935c) (verse  7 ) accusative feminine singular.
The metaphor of the open door was a common one ( Joh 10:7-9  Ac
14:27  1Co 16:9  2Co 2:12  Col 4:3  Re 3:20  4:1 ). Probably it
means here a good opportunity for missionary effort in spite of
the Jewish hostility. {Which} (h(886e)--aut(886e)). Pleonastic
vernacular and Hebrew repetition of the personal pronoun aut(886e)
(it) after the relative h(886e) (which). Direct reference to the
statement in verse  7 . {That} (hoti). This conjunction resumes
the construction of oida sou ta erga (I know thy works) after
the parenthesis (idou--aut(886e), Behold--shut). {A little power}
(mikran dunamin). Probably "little power," little influence or
weight in Philadelphia, the members probably from the lower
classes ( 1Co 1:26f. ). {And didst keep} (kai et(8872)(8873)as). "And
yet (adversative use of kai) didst keep" (first aorist active
indicative of 	(8872)e(935c)) my word in some crisis of trial. See  Joh
17:6  for the phrase "keeping the word." {Didst not deny} (ouk
(8872)n(8873)(935c)). First aorist middle indicative second person singular
of arneomai. The issue was probably forced by the Jews (cf.
 2:9 ), but they stood true.