'Undue' in the Bible

Discipline and teach your son while there is hope,And do not [indulge your anger or resentment by imposing inappropriate punishment nor] desire his destruction.

No one sues righteously [but for the sake of doing injury to others—to take some undue advantage], and no one pleads [his case] in truth; [but rather]They trust in empty arguments and speak lies;They conceive trouble and bring forth injustice.

For God shows no partiality [no arbitrary favoritism; with Him one person is not more important than another].