Came oft (hrceto). Imperfect tense denotes repetitions, no adverb for "oft" in the Greek. Avenge me of (ekdikhson me apo). A late verb for doing justice, protecting one from another (note both ek and apo, here). Deissmann (Light from the Ancient East, pp. 420ff.) quotes a sthlh of the second century B.C. with a prayer for vengeance for a Jewish girl that had been murdered which has this very verb ekdikew.