Ephesians 3:17-19

That Christ may dwell in your hearts through faith; that you, being rooted and grounded in love, may be able to comprehend with all the saints what is the width and length and depth and height—to know the love of Christ which passes knowledge; that you may be filled with all the fullness of God.

Faith and love work together for us to be overcomers in this life.  Walking in love keeps us from getting into strife and out of the traps of the devil.  Faith then can have its perfect work with no hinderances toward our believing and receiving in this world.  As we learn to let our faith and love walk hand in hand together, we will know the love of Christ which passes knowledge.