There's a lot of scripture that shows you how to be a better person on earth. Basically that's the whole book of Proverbs. But this is a great scripture that shows us how we can concentrate on a better character and reap the fruits of the Holy Spirit if we flex the Holy Spirit more!
“But the fruit of the Spirit is love, joy, peace, forbearance, kindness, goodness, faithfulness, gentleness and self-control. Against such things there is no law. Those who belong to Christ Jesus have crucified the flesh with its passions and desires. Since we live by the Spirit, let us keep in step with the Spirit. Let us not become conceited, provoking and envying each other.”