As I consider the ‘fullness of God’ I am keenly aware of the worship and mystery in considering such things. Worship leads to thanksgiving and mystery leads to faith. There is a single favorite text that helps describe this: “The grace of the Lord Jesus Christ, the love of God, and the fellowship of the Holy Spirit, be with you all” (2 Corinthians 13:14). This Trinitarian salutation expresses the mystery of our faith.
These Three, love, grace and fellowship, express the essential natures and functions of God. The Father is love, Jesus is grace and the Holy Spirit is fellowship. This is the life of God to us. This is the example of spiritual life as compared to natural life. This is the characteristic activity of God and is the substance, principle and definition of such activity.
“O righteous Father, even though the world does not know you, I know you, and these know that you have sent me. I made known to them your name, and I will continue to make it known, that the love with which you have loved me may be in them, and I in them.” Jesus