Philippians 2:14-16 New American Standard Bible (NASB)

14. Do all things without grumbling or disputing;

15. so that you will prove yourselves to be blameless and innocent, children of God above reproach in the midst of a crooked and perverse generation, among whom you appear as lights in the world,

16. holding fast the word of life, so that in the day of Christ I will have reason to glory because I did not run in vain nor toil in vain.

Philippians 2