Complain not one against another, brethren, that ye not be condemned: behold, the judge stands before the door.
Jesus therefore answered and said unto them, Murmur not among yourselves.
1 Corinthians 10:10
Neither murmur ye, as some of them also murmured and perished by the destroyer.
1 Peter 4:9
Lovingly be hospitable one to another without murmuring.
and those that erred in spirit shall learn understanding, and they that murmured shall learn doctrine.
And the LORD said unto Moses, Return Aaron's rod before the testimony to be kept for a sign unto the rebellious sons; and thou shalt cause their complaints to cease from upon me, that they not die.