Your answer here speaks volumes regarding your understanding of the Bible. If you don’t understand the importance of the Akeldama (potters field) purchase, and how it pertains to God’s ability to dictate who his chosen are, and to what exactly they are entitled, then what was the point of the New Covenant?
Correct. But if you come upon multiple people claiming to be endowed with the Holy Spirit, each holding different interpretations, obviously some are in error. Far be it for me to judge which one was actually in error, all I can do is point out where I believe the disconnect between a fellow and the Word happens to be. Your disconnect happens to be your understanding of what the Promise actually was … apparently it is a Land Covenant, but is this a land for the Living, or the Dead? That’s where exegetics comes into play.
There’s nothing new under the Sun. So if they were not in fulfillment of Covenant and not deserving of a Promised Land at the incarnation, how, pray tell, is the Nation of ‘Israel’ today to be deserving of Christian favor? It isn’t. The cursing of the Fig Tree is a pretty clear summary of the fate of that nation, not bearing fruit and NEVER to bear fruit again.
This is impossible without a correct interpretation and a solid contextual understanding of what the land of ‘Israel’ represents, historically, and eschatologically.
There is no Dual Covenant, just one Covenant, which tracks a single Circumcision … now of the heart, not of the flesh, which is for the burying place.