I agree that it is not in one's ultimate best interest to reject Christ, but Bible also says we must reject self...
Luke 9:23
“And he said to them all, If any man will come after me, let him deny himself, and take up his cross daily, and follow me.”
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I say a whole lot of things that others don't get at first glance. For example, I'd coined a phrase, "I'm going to kill you so hard that you die to death." Well, this looks to be an awfully ill-willed sentiment but with closer examination, this results in living forever, or 'dying to death.' Ok so, nobody gets it but the spirit in which the saying was birth remains.
I don't mean to enter into a word game but, to explain my language choice, I see a slight nuance between denying oneself and rejecting oneself. Considering how Christ came to mediate between God and man, i.e. He represents both God and man, I see rejecting Him as rejecting our representation in the covenant. Jesus satisfied the terms Father demands, that we die, and also the terms that we plead for, mercy.
So, in His having obtained mercy for us, and so much more in procuring for us an inheritance as God's children, rejecting this, or denying Him as Father, is rejecting the birthright provided us, just as Esau, the man of the field, did, you see. On the other hand, Jacob, who dwelt in tents, coveted the inheritance and bargained with him for it. And got it, such a rich inheritance of the kingdom that is to come, for a bowl of beans.
In agreeing for the trade, Esau rejected his identity, the rightful heir, for the spoils of the current kingdom, a bowl of beans. Esau regarded the beans that he could have immediately of more value than Jacob who, by faith, valued what he could not yet see but believed the promise of God for that which is to come.
So, you see, Jacob did deny himself the 'soup of the day,' but Esau rejected who he was born to be.