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 multiplied2 Peter 1:2-3
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.
“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.