The Lord compares us with pampanos that must bear fruit, and in this quote we find what that fruit is. A tree that bears good fruit is covetable and everyone wants to be close to it.
Love is what we produce in ourselves so that others can enjoy and feel pleasant when they receive it from us, so it allows us to have and impart joy. Apply patience when it is required understanding others and end up supporting some oprovio.
Goodness is a quality that we acquire as children of God, we could say that it is part of the spiritual genetics because God is good, and the reason that it is so is that his mercy lasts forever.