The knowledge of God is man's greatest knowledge. We come to know the true and living God through His Son, the Lord Jesus Christ. Read what the Bible says in 1 John 2:12-14. Take special notice of the phrase, "...ye have known him."

We need to understand that this is written to all who know the Lord. Note the expressions, "little children," "young men," and "fathers." John is covering everyone in a local assembly. This has nothing to do with gender. He is writing about the stages of Christian development and growth.