He that resisteth (ho antitassomenos). Present middle articular participle of antitassō, old verb to range in battle against as in Act 18:6, “he that lines himself up against.”
Withstandeth (anthestēken). Perfect active indicative of anthistēmi and intransitive, “has taken his stand against.”
The ordinance of God (tēi tou theou diatagēi). Late word, but common in papyri (Deissmann, Light, etc., p. 89), in N.T. only here and Act 7:53. Note repetition of root of tassō.
To themselves (heautois). Dative of disadvantage. See Mar 12:40 for “shall receive a judgment” (krina lēmpsontai). Future middle of lambanō.