'Complain' in the Bible

And do not murmur [in unwarranted discontent], as some of them did—and were destroyed by the destroyer.

Do not complain against one another, believers, so that you will not be judged [for it]. Look! The Judge is standing right at the door.

These people are [habitual] murmurers, griping and complaining, following after their own desires [controlled by passion]; they speak arrogantly, [pretending admiration and] flattering people to gain an advantage.