God is omnipotent. He knows everything about us, and wants us to know Him as He knows us.
God has taken us as His spouse. He wants us to know Him intimately as a spouse, not as someone invoked when in need, or as a friend visited weekends, or as a distant god. God desires a committed spousal relationship, a total sharing of self, in our goodness and our brokenness. A love that grows in knowledge of the other, a love that sacrifices for the other.
I believe this is the knowledge Christ speaks about at the time of judgment. Did we take, know and love Him as our spousal?