"The so-called aorist or indefinite
form is really not a tense at all, combining the marks of both past
and future in its composition, unless it may be called a past-future.
It corresponds with the indefinite present, I-WRITE. It is used
of all three tenses in Ro.8:30: He designates beforehand (past),
He calls and justifies (present), He glorifies (future)." Five
methods of proof are given.