וְכֵלַ֖י כֵּלָ֣יו רָעִ֑ים ה֚וּא זִמּ֣וֹת יָעָ֔ץ לְחַבֵּ֤ל ענוים [עֲנִיִּים֙] בְּאִמְרֵי־שֶׁ֔קֶר וּבְדַבֵּ֥ר אֶבְי֖וֹן מִשְׁפָּֽט׃
The instruments also of the churl are evil; He deviseth wicked devices To destroy the poor with lying words, And the needy when he speaketh right.
Rashi on Isaiah
and when the needy speaks a plea (מִשְׁפָּט) To destroy the needy in his plea (מִשְׁפָּטוֹ). This word מִשְׁפָּט is an expression denoting the initial presentation of the case; when the needy presents his pleas, this one plans wicked plots to trap him with his devices. The word מִשְׁפָּט has three meanings: the initial pleas (derajjsnement in O.F.), the sentence (joujjment), and the execution of the verdict, that they discipline him with chastisement (joustize in O.F.).
Ibn Ezra on Isaiah
The instruments also, etc. The instruments of justice; for the officers were judges, whose principle was to arrest judgment.