I get what your saying the vast difference is our knowledge and Gods knowledge which His IQ can’t be numbered like us humans can.
Isaiah 40
12Who has measured the waters in the hollow of his hand, or marked off the heavens with the span of his hand? Who has held the dust of the earth in a basket, or weighed the mountains on a scale and the hills with a balance?
13Who has directed the Spirit of the LORD, or informed Him as His counselor?
14Whom did He consult to enlighten Him, and who taught Him the paths of justice? Who imparted knowledge to Him and showed Him the way of understanding?
Isaiah 55 is more on the wicked and unrighteous ways and thoughts, what is mentioned in 8 and 9 goes hand and hand with verse 7, the main focus point of 55 is a Invitation to the Needy.