But you, dear friends, by building yourselves up in your most holy faith and praying in the Holy Spirit,  keep yourselves in God’s love as you wait for the mercy of our Lord Jesus Christ to bring you to eternal life.
(Jude 1:20-21)

Faith and praying builds our character.  It helps us to resist the temptation that is put before us every day.  I still cave in to temptation, but when I go back to the Holy Spirit, my resolve is restored and shored up, ready for the next attack.