The Kingdom of God is about an Eternal Relationship With God

John 17:3 What is eternal life? Jesus, in talking with the Father said, “this is life eternal, that they might know You the only true God, and Jesus Christ, whom You have sent.” It is not knowing about God and Jesus but knowing them personally.
Ephesians 2:10 What does this verse tell us about relationship? God initiates and creates this relationship. We are His workmanship created with a spiritual oneness with Him, and Christ Jesus through His Spirit. His Spirit teaches us and guides us into all truth (John 14:26; 16:13), thereby renewing our mind and transforming our life to be in accord with His will (Romans 12:2). Our awareness and knowledge of this relationship comes through experience and includes impressions and His working in our mind and life.
1 John 1:3 What does this verse tell us about relationship? It is a fellowship. It is a sharing of spiritual life with the Father, with His Son Jesus Christ and with each other through His Spirit.
Matthew 6:9 What does this verse tell us about relationship when we pray? Jesus said, when you pray say, “Our Father which is in heaven.” “Our” tells us that we are in relationship with each and with the Father. “We have not received the spirit of bondage again to fear; but we have received the Spirit of adoption, whereby we cry Abba Father. The Spirit Himself bears witness with our spirit, that we are the children of God” (Romans 8:15-16).