Scripture starts with the particular and then universalizes it. You are called to love your concrete individual neighbor and then to realize that every individual is your neighbor. The point is not to destroy concrete neighborhood in a fit of universalism but to expand the local neighborhood and embrace the universal neighborhood.
Peter KreeftLove is faith's flower, hope is its stem. Grace comes into us by faith, like water through the roots of a tree. It rises in us by hope, like sap rising through the trunk of a tree. And it matures in us by [love] as fruit matures on a tree's branches, fruit for the neighbor's eating.
Peter KreeftOur only qualitifcation for God's grace is our emptiness, not our fullness; our undeservingness, not our deservingness.
Peter KreeftWe can't believe what we believe to be untrue, and we can't love what we believe to be unreal.
Peter Kreeft