Knowledge without the word is merchandising nonsense and the multiplication of grace is not a subject of ongoing knowledge. It is a sad and sorry alley to be in and there are many backing into it because of a soundbyte.

Grace is multiplied

2. Grace and peace be multiplied to you in the knowledge of God and of Jesus our Lord; 3. seeing that His divine power has granted to us everything pertaining to life and godliness, through the true knowledge of Him who called us by His own glory and excellence.

2 Peter 1:2-3

“Be multiplied” is the aorist tense, passive voice, and optative mood of plethuno, πληθυνω, I multiply.  There is one way that this verse is addressing a practical processs of acquiring knowledge of God or Bible content, and that way is the fevered production of confused minds.