Albert Barnes Commentary Job 28:14

"The deep saith, It is not in me; And the sea saith, It is not with me." — Job 28:14 (ASV)

The depth says - This is a beautiful personification. The object of this verse and the following is to show that wisdom cannot be found in the deepest recesses that humans can penetrate, nor purchased by anything humans possess. It must come from God only.

The word “depth” here (תהום t^ehôm) properly means a wave, billow, surge; then a mass of waters, a flood, or the deep ocean (Deuteronomy 8:7; Genesis 7:11; Psalms 36:6); and then a gulf, or abyss. It refers here to the sea, or ocean; and the idea is that its vast depths might be sounded, and true wisdom would not be found there.