Philippians 2:14-15 (NIV)
14 Do everything without grumbling or arguing, 15 so that you may become blameless and pure, “children of God without fault in a warped and crooked generation.” Then you will shine among them like stars in the sky.
Jude 14-16 (NIV)
14 Enoch, the seventh from Adam, prophesied about them: “See, the Lord is coming with thousands upon thousands of his holy ones 15 to judge everyone, and to convict all of them of all the ungodly acts they have committed in their ungodliness, and of all the defiant words ungodly sinners have spoken against him.” 16 These people are grumblers and faultfinders; they follow their own evil desires; they boast about themselves and flatter others for their own advantage.