There is full of joy in true fellowship.

If we have true fellowship with Father God and the Son Jesus (1 Jn. 1:3)

Then there is full of joy in our hearts that the Holy Spirit gives (v. 4).

There is eternal life in fellowship with Father God and the Son Jesus (5:11-13; Rom. 6:23)

And we who enjoy that eternal life obey Jesus twofold command:

“'Love the Lord your God with all your heart and with all your soul and with all your mind”

And “'Love your neighbor as yourself” (Mt. 22:37, 39).

As we do so, there is full of divine joy that the Holy Spirit gives to us.

(Jn. 15:9-12; 1 Jn. 1:4)