Communion with God is Communion with the Son
Source: TTT
1 Corinthians 1:9
God, who has called you into fellowship with His Son Jesus Christ our Lord, is faithful.
1 John 1:3
We proclaim to you what we have seen and heard, so that you also may have fellowship with us. And this fellowship of ours is with the Father and with His Son, Jesus Christ.
Revelation 3:20
Behold, I stand at the door and knock. If anyone hears My voice and opens the door, I will come in and dine with him, and he with Me.