If the first covenant is eternal but a second can wipe it out why should we put our trust in His new eternal covenant? If He doesn't change why would He change His covenant? And if He changes things He calls eternal why should we trust Him? If eternal is just a meaningless title and He really doesn't change then this is His patern to swear covenants and then replace them in a couple thousand years...it's been a couple thousand since the last eternal covenant. If He doesn't change and this is His method -to swear an eternal covenant and then replace it with another- we should be due for an even newer eternal covenant to replace the last one soon. Shouldn't we?...

That is unless of course we got it all wrong in churchianity. That couldn't be though could it?

Could it be that when YHWH Almighty swears an eternal covenant that it's really eternal and not till a few millennia pass and a new crop of people dont understand or want it? Could it be that we break His covenants and He reforges the pieces stronger again and again?

YHWH indeed changes not and so we need not fear the promises He made will be revoked in time. We need only fear His Name and His greatness and cleave to His covenants.