Conclusion

Pentecost nicely sums up this series of parables from the dispensationalist viewpoint,

"We may summarize the [dispensational] teaching as to the course of the age by saying:

1. there will be a sowing of the Word throughout the age, which

2. will be imitated by a false counter sowing;

3. the kingdom will assume huge outer proportions, but

4. be marked by inner doctrinal corruption; yet, the Lord will gain for Himself

5. a peculiar treasure from among Israel, and

6. from the church;

7. the age will end in judgment with the unrighteous excluded from the kingdom to be inaugurated and the righteous taken in to enjoy the blessing of Messiah’s reign." [Things To Come, J. Dwight Pentecost]

The general idea holds together consistently.  It doesn’t require allegorical imposition for support; it allows for literal interpretation of Old Testament prophecies of an earthly kingdom ruled over by Messiah from literal Jerusalem.  It’s pretty straightforward and credible if you first acknowledge a distinction between Israel and the church, and God's program for each.