Which is more important than faith or love?
Faith will saved you in God or love?
This is reason why a lot of religious fanatics have a lot of faith to die in what they believe but they don't love.
Faith is a gift from God that comes from outside of ourselves, as the Apostle St. Paul writes in Ephesians 2:8-9 that we are saved by grace alone through faith, and this is not of ourselves, it is the gift of God, not by works so that no one can boast. Which is why our justification is by grace alone through faith, not by our own efforts.
When the Apostle, in 1 Corinthians 13, says "If I have faith that can move mountains, but have not love, I have nothing" He is not talking about our salvation or our justification, but rather He is talking about the life we have in Christ by the Spirit (the entire context of chapters 12, 13, and 14 are about us together living in the Spirit as the Church). Simply having a "great faith" but lacking in love, the Apostle says, is meaningless. We shouldn't think of him talking about saving faith here, but the strength of faith. Love is the supreme expression of Christian life. The three greatest virtues are faith, hope, and love, but even of these the greatest is love. Love is how our lives are to be shaped in faith with hope.
This is a distinction, that in Lutherans terms, that would be described as Coram Deo and Coram Hominibus, or "us before God" and "us before men". 1 Corinthians 13 is Coram Hominibus, us before our fellow man, how we are to engage and be toward others, think of it as our horizontal life--the calling to love our neighbor, to feed the hungry, etc.
Justification, salvation, i.e. what the Apostle is talking about in Ephesians 2 is Coram Deo, our place before God. Think of it as vertical, and here it is not about Law, but Gospel, not what we do or have done, but what God does and has done for us in Jesus.
-CryptoLutheran