Here is an article from the patron saint of RTS Orlando, Richard Pratt Jr. I know there are several views on the conditionality of the Abrahamic and Davidic covenants. Pratt makes a strong case that both of these covenants were conditional even though their stipulations are not directly stated. Here is the conclusion to the article:
In my estimation reformed theologians who argue that the Abrahamic and Davidic covenants were unconditional are fundamentally misguided. Although we may distinguish the central concerns of Abrahamic, Mosaic and Davidic covenants from each other and from other biblical covenants, there is little justification for arguing that the difference is conditionality and unconditionality. God’s plan for his kingdom has unfolded across history in a way that is unified. The one God of Scripture designed all of his covenants as administrations of his one immutable kingdom purpose. Moreover, God has granted the reception of salvation promised in every covenant through the same process in every covenant administration. His grace undergirds every aspect of covenant life and personal salvation. Yet, life in covenant with God has always entailed the condition of loyalty as the demonstration of saving faith.
This continuity allows New Testament believers to benefit from all of God’s covenants in the Old Testament. The covenants with Abraham and David reveal much about covenant life and salvation in the New Testament. But the same is true of other covenants as well. God’s people have always been justified by faith in the promises of God in Christ apart from works. Yet, faith that justifies has always resulted in meeting the requirements of good works. Works of righteousness through the sanctifying power of the Spirit have been required in every covenant in Scripture.
If you have time you should read the rest of the article. It is well done and comes from both a historical and a literary perspective. If this is true then it has some important implications such as: How are works related to faith? What is the nature of the new covenant’s “unconditionality”? I know that we all come from different backgrounds so I am interested in seeing how this article interacts with your current views.