Acts.6.1Now in these days when the disciples were increasing in number, a complaint by the Hellenists arose against the Hebrews because their widows were being neglected in the daily distribution.
Acts.18.14But when Paul was about to open his mouth, Gallio said to the Jews, “If it were a matter of wrongdoing or vicious crime, O Jews, I would have reason to accept your complaint.
Acts.19.38If therefore Demetrius and the craftsmen with him have a complaint against anyone, the courts are open, and there are proconsuls. Let them bring charges against one another.
Col.3.13bearing with one another and, if one has a complaint against another, forgiving each other; as the Lord has forgiven you, so you also must forgive.