Albert Barnes Commentary Job 36:17

"But thou art full of the judgment of the wicked: Judgment and justice take hold [on thee]." — Job 36:17 (ASV)

But thou hast fulfilled the judgment of the wicked - Rosenmuller explains this as meaning, “If under divine inflictions and chastisements you wish to imitate the stubbornness of the wicked, then the cause and the punishment will mutually sustain themselves; that is, the one will be commensurate with the other.”

But it is not necessary to regard this as a “supposition.” It has rather the aspect of an affirmation, meaning to express the fact that Job “had,” as Elihu feared, evinced the same spirit in his trials which the wicked do.

He had not seen in him evidence of penitence and of a desire to return to God, but had heard complaints and murmurings, such as the wicked indulge in. He had “filled up,” or “fulfilled,” the judgment of the wicked; that is, he had in no way come short of the opinion which “they” expressed of the divine dealings.

Still, it is possible that the word “if” may be understood here, and that Elihu means merely to state that if Job should manifest the same spirit as the wicked, instead of a spirit of penitence, he would have reason to expect the same doom which they experience.

Judgment and justice take hold on thee - Margin, “or, should uphold you.” The Hebrew word rendered here as “take”—יתמכוּ yitmokû—is from תמך tâmak, meaning “to take hold of, to obtain, to hold fast, to support.” Rosenmuller and Gesenius suppose that the word here has a “reciprocal” sense, meaning they take hold of each other, or sustain each other. Professor Lee renders it, “Both judgment and justice will uphold this;” that is, the sentiment he had just advanced, that Job had filled up the judgment of the wicked. Urnbrett renders it, “If you are full of the opinion of the wicked, then the opinion and justice will rapidly follow each other.”

Doch wenn du voll bist von des Frevlers Urteil,
So werden Urteil und Gericht schnell auf einander folgen.

According to this, the meaning is that if Job held the opinions of wicked people, he must expect that these opinions would be rapidly followed by judgment, or that they would go together and support each other. This seems to me to be in accordance with the connection and to express the thought Elihu meant to convey. It is a sentiment that is undoubtedly true—that if a man holds the sentiments and manifests the spirit of the wicked, he must expect to be treated as they are.