Abraham’s Four Seeds is a biblical examination of the presuppositions of Covenant Theology and Dispensationalism. Pastor, evangelist, and author John G. Reisinger demonstrates how a correct understanding of Abraham’s seeds is key to harmonizing Scripture. He writes:
The following statement, if correctly understood, will help to clear up a lot of confusion: The nation of Israel was not the ‘Body of Christ,’ even though the Body of Christ is indeed the true ‘Israel of God.’

Covenant Theology cannot accept the first part of that statement and Dispensationalism cannot accept the second part. The basic presuppositions of Covenant Theology make it mandatory that Israel be the church and be under the same covenant as the church, and the one thing a Dispensationalist must maintain is the church’s present and future distinction from Israel which makes it mandatory that Israel and the church can never be under the same covenant or inherit the same blessings. What is essential to one system is anathema to the other system.