Which doeth great things - This is almost the sentiment which had been expressed by Eliphaz; see the notes, Job 5:9. It was evidently a proverb, and as such was used by both Eliphaz and Job.

Great things past finding out - Great things without end; wonders without number - Targum.

Which doth great things past finding out,.... In heaven and earth; great as to quantity and quality, not to be thoroughly searched out so as to tell their numbers, nor explain and express the nature of them to the full; even what he has done, and does in creation, providence, and grace:
yea, and wonders without number; such as are amazing to men, who cannot account for them, and so many that they cannot number them. The same things are said by Eliphaz; see Gill on Job 5:9; and which Job here repeats, to show that he agreed with him, and was ready to own what was truth, whenever expressed by him or his friends, and especially such as made for the glory of the Divine Being.

Repeated from Eliphaz (Job 5:9).

Doth great things, &c. - Job here says the same that Eliphaz had said, Job 5:9, and in the original, in the very same words, with design to shew his full agreement with him, touching the Divine perfections.