Love is patient. Love is kind. And then he says Love never ends. All other things are temporary. Knowledge and prophecy and ecstatic tongues, all of the ways in which we relate to God will come to an end except one.
Love never ends.
By that I think Paul means that God s love for each one of us will never end. And by that I think he also means that the love which we have for God and for one another has an eternal quality. Nothing can terminate God s love for us and not even death can put an end to the love which we have for God. Whatever part of me it is that loves God, that part of me partakes of eternity. A person who does not love does not know God because God is love.