Job 38:21 - Joseph Benson’s Commentary on the Old and New Testaments

Knowest thou it, because thou wast then born? An ironical question. If thou pretendest that thou knowest these things, how camest thou by this knowledge? Was it because thou didst then exist in the full and perfect use of thy faculties, and thereby hadst the opportunity of inspecting my works, and of seeing whence the light came? Or, because thou hast gained this knowledge by long experience, as having lived ever since the creation of the world until this time? Whereas, in truth, thou art but of yesterday, and knowest, comparatively, nothing, Job 8:9.