That which was from the beginning, that which we have heard, that which we have seen with our eyes, that which we saw, and our hands touched, concerning the Word of life
In chapter 16 of the gospel of John, he relates the fullness of joy to our prayer life, "Henceforth you've asked nothing in My name: ask, that you may receive, that your joy may be full" ( John 16:23-24 ). Here, the fullness of joy is related to fellowship with God, a life of fellowship with God. Abiding in Christ is a life of fullness of joy.