Albert Barnes Commentary Job 26:2

"How hast thou helped him that is without power! How hast thou saved the arm that hath no strength!" — Job 26:2 (ASV)

How have you helped him who is without power? - It has been doubted whether this refers to Job himself, the two friends of Bildad, or to the Deity. Rosenmuller.

The connection, however, seems to demand that it should be referred to Job himself. It is sarcastical.

Bildad had come as a friend and comforter. He had also, in common with Eliphaz and Zophar, taken upon himself the office of teacher and counsellor. He had regarded Job as manifesting great weakness in his views of God and His government, as destitute of all strength to bear up correctly under trials. Now, all that he had done to aid one so weak was found in the impertinent and irrelevant generalities of his brief speech.

Job is indignant that one with such pretensions should have said nothing more to the purpose.

Herder, however, renders this as if it related entirely to God, and it cannot be denied that the Hebrew would bear this:

“Whom do you help? Him who has no strength?
Whom do you vindicate? Him whose arm has no power?
To whom do you give counsel? One without wisdom?
Truly, you have taught him much wisdom.”

How do you save the arm that has no strength? - That is, your remarks are not adapted to invigorate the feeble.

He had come professedly to comfort and support his afflicted friend in his trials. Yet Job asks what there was in his observations that was fitted to produce this effect?

Instead of declaiming on the majesty and greatness of God, he should have said something that was adapted to relieve an afflicted and a troubled soul.