It is difficult to overstate the importance of the Abrahamic covenant. In this historical administration of the eternal covenant of grace, both the substance of God’s redemption and the method by which He will accomplish that redemption gain a clarity that they had not possessed before. The Abrahamic covenant does not constitute a new direction in God’s redemptive activity, to be certain, but it does represent a massive step forward in the revelation of how that redemptive activity would proceed.
STEPHEN G. MYERS, GOD TO US – COVENANT THEOLOGY IN SCRIPTURE, 229.