The Present Indicative in New Testament Exegesis

What does the present tense of the impersonal verbs signify? Ex-amining the examples, one concludes that the present tense normally stresses. the present time application of the statement. "It is necessary (dei?)" applies to the present; "it was necessary (e@dei)" applies to the past. 1 Robertson, Grammar, p. 881. 2 Turner, Syntax, pp. 291-92. ................
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