Barthian that he is, Jenson gets the point of the Song’s “seal on my heart” just right: Jesus’ “death has made us the seal of his identity: he dies ‘for’ us, in identification with us.  Now he is not what he is without us; he did not go into death without us, and he will not fulfill his resurrection without us.  Indeed, whatever might have been, our reality as the seal of his identity is such that as the risen one he cannot be himself without us.”

That is to say: Because we are the seal on His heart, He cannot deny us without denying Himself.

And He does not deny Himself.