What is knowledge?

Knowledge of knowledge? Or, knowledge of God?

Grace and peace be multiplied unto you through the knowledge of God, and of Jesus our Lord, According as his divine power has given unto us all things that pertain unto life and godliness, through the knowledge of him who has called us to glory and virtue: 2 Peter 1:2-3

Knowledge:  G1922  ἐπίγνωσις  epignōsis

From G1921; recognition, that is, (by implication) full discernment, acknowledgement: – (ac-) knowledge (-ing, -ment).

So, the knowledge of God, knowledge of Him, is the recognition and acknowledgment of everything that He is. Your spirit and mind recognizes Him. How can that be possible? Only if He dwells within, by His Spirit, His Spirit witnessing to our spirit (1 Cor 2:10-16). Knowledge is ac-knowledge-ment.

To lack the knowledge of God is to not recognize and acknowledge Him. See the distinction between knowledge of knowledge and knowledge of Him? See how some can be ever learning but never coming to the knowledge of the truth? (2 Tim. 3:7)  They are ‘learning’ but they are not coming to an acknowledgment of Him, bcos they don’t recognize Him. So, there is a form of knowledge which is actually a substitute for Him.

All things that pertain unto life and godliness  are through the knowledge of Him.

This tells us that the true knowledge of Him radically affects someone’s life and godliness. False knowledge doesn’t.