Philippians 2:14-16
2:14 Do everything without grumbling or arguing,
2:15 so that you may be blameless and pure, children of God without blemish though you live in a crooked and perverse society, in which you shine as lights in the world
2:16 by holding on to the word of life so that on the day of Christ I will have a reason to boast that I did not run in vain nor labor in vain.