How can a eternal kingdom which has no beginning or end, begin in 70ad or become complete in 70ad, or become eternal in 70ad? How can something invisible in nature be said to have come or gone in a temporal event like the Destruction of Jerusalem. Jacob's assumes that becuase the temple was destroyed that the kingdom came. What he is calling eternal is in fact a temporal event. He has no scriptural proof that says anything came, completed, began or ended in 70ad. But he wants us to assume, just like he is assuming, that becuase the temple was destroyed, we must know and believe this historic event was the focal point of the coming kingdom. If the kingdom comes not with observation, how can it be observed in the Destruction of Jerusalem?
Marvin E. Jacobs Article: Eternal Kingdom
Probably one of the reasons there are such differing ideas regarding the kingdom and the time of its establishment is a failure to think Spiritually. In 1 Corinthians 2:13-14, Paul said, "which things also we speak, not in the words which man's wisdom teacheth but which the Holy Ghost teacheth; comparing spiritual things with spiritual. But the natural man receiveth not the things of the Spirit of God for they are foolishness unto him: neither can he know them, because they are spiritually discerned."
Since the writer is comparing the law system and all that is involved, the temple and priesthood, etc., to the new system with the spiritual temple, priesthood, etc., would it be illogical to expect a physical observation of the removal of the physical, and spiritually by faith perceive the eternal system remaining? One can see that the temple was destroyed and the priesthood removed in A.D.70. If one really believes God, he can be assured that Christ came in his eternal kingdom.
Christ came in His eternal, Spiritual kingdom "in the days of these kings", "in the last days" of the Judah and Jerusalem system of things, "immediately after the tribulation of those days", (referring to the besiegement and destruction of Jerusalem), "before that generation ceased," and before "some which stand here taste death." Those who truly believe Him have eternal life and if they continue to believe Him, they will never die. (John 11:25-26).
http://www.eschatology.org/index.php?option=com_content&task=view&id=46&Itemid=61
