Filipenses 2

14 Do all things without murmurings and disputings; 15 that ye may be blameless and harmless, children of God without blemish in the midst of a crooked and perverse generation, among whom ye are seen as lights in the world, 16 holding forth the word of life; that I may have whereof to glory in the day of Christ, that I did not run in vain neither labour in vain.