{To execute judgment} (poi(8873)ai krisin). "To do justice."
{To convict} (elegxai). First aorist (effective) active
infinitive like poi(8873)ai before it. {Ungodly} (asebeis). See
verse  4  and end of this verse. {Of ungodliness} (asebeias).
Old word as in  Ro 1:18 , plural in  Jude 1:18  as in  Ro 11:26 .
{Which} (h(936e)). Genitive by attraction from ha (cognate
accusative with (8873)eb(8873)an, old verb, to act impiously, here
alone in N.T. save some MSS. in  2Pe 2:6 ) to agree with the
antecedent erg(936e) (deeds). {Hard things} (skl(8872)(936e)). Harsh,
rough things as in  Joh 6:60 . {Which} (h(936e)). Genitive by
attraction from ha (object of elal(8873)an, first aorist active
indicative of lale(935c)) to the case of the antecedent skl(8872)(936e).
Four times in this verse as a sort of refrain asebeis (twice),
asebeias, (8873)eb(8873)an.