John Gill Commentary Job 13:2

"What ye know, [the same] do I know also: I am not inferior unto you." — Job 13:2 (ASV)

What you know, [the same] do I know also
Concerning God and his perfections, his sovereignty, holiness, justice, wisdom, power, goodness and concerning his providences, and his dealings with men in an ordinary or in an extraordinary way:

I [am] not inferior to you ;
as might be deduced from the preceding discourse; (See Gill on Job 12:3).