The fruit of the Spirit is love, joy, peace, patience, kindness, generosity, faithfulness, gentleness, and self-control. (Galatians 5:22-23)
Fruit is what you get when a tree has life within it. Why does a tree bear fruit? Not because there is some law of nature that says it must. But simply because of the life within it, rising up from the soil and water that feed its roots and flowing in the sap through every branch and twig. A tree does not bear fruit by keeping the laws of nature (if we can use our imagination and think like a tree), but simply because it is a living tree, being and doing what a tree is and does when it is alive…
How do you know if a tree is alive? You look for the buds, the leaves, and then the fruit. The fruit is the evidence that the tree has life within it. Where there is fruit, there is life. But if there’s no fruit, the tree may be dead. How do you know if a believer, or a church, is alive? Look for the love. Where there is love, there is life.
– Christopher Wright, Cultivating the Fruit of the Spirit