Ephesians 3:19 indicates that it is far more than a mere knowledge of God. It is total immersion through our being a partaker of His nature. Our experiential knowledge conforms our thoughts, purpose, and actions to His will and ways  ~ producing inner transformation.

Romans 1:21 says that they knew God, but they did not glorify Him as God. John 15:1-8 was written about abiding. Verse 5 in the Amplified says, “I am the Vine; you are the branches. Whoever lives in Me and I in him bears much (abundant) fruit. However, apart from Me (cut off from vital union with Me) you can do nothing.”

Verse 8 says that the result of living in His abundance, bears much fruit that will glorify Him. Intimate communion is drinking in His abundance, dwelling vitally united to Him, so that we can reflect His character to others.