The actual creation of Adam and Eve and the placing of them in the Garden of Eden was not an end in itself but only a necessary step at the beginning of a process that continues right down to today.
God is creating a community.
From the very beginning, God implies the expansion of His own community. He says, "Let Us," indicate a community already exists. Man was made, physically, in God's image, and he begins with characteristics of shape and form in common with his Maker. The rest of the Bible fills in the details of how mankind is being brought from having not only form and shape in common with his Maker, but also character, so that he fits perfectly into the community that the Maker is expanding.
When the Son of God came, He came with a message from His Father. Jesus gave as the title to the message that He brought, "the good news of the Kingdom of God" (Mark 1:14-15). This is the Boss Himself, and this is the title He Himself gave. It was the good news of the Kingdom of God.
Is there any doubt in our minds that God is forming a community? Is there any doubt that Jesus Christ will rule this community, first, and that afterward, He will turn everything over to the Father? (I Corinthians 15:28)? There is nothing ambiguous here. Is God forming a community?
The important thing for us is what ramifications the good news of the Kingdom of God has on the way we live our lives. In the course of the unfolding of Christ's ministry, and the apostles' afterward, we find some interesting things that have a direct impact on the way we live our lives.
First, Christ was the Son of God. Does not a son indicate a family relationship? “Son” is used in the Bible in at least two different ways. One means "a direct descendant of." The other is used in the sense of "characteristics of, but not necessarily direct descendant of." The Bible says plainly that Jesus was the Son of God, a direct relationship. Since He was of the same Family, there is a family relationship. He was not only a literal Son born of Mary of the Holy Spirit, but He also showed the characteristics of God. He was God.
Is Christ indicating a family relationship with us in Mark 3:34-35? We have already seen that the community that He is creating is a kingdom. This kingdom is also a Family. Everybody is related, all being sons of the Creator. Everybody has the same characteristics. Do not the descendants of parents look like their parents? Sure they do.
Everything fits together beautifully, and logically. God is reproducing Himself.
Consider Romans 8:14-15. Is that a family? Thus, if we have the Spirit of God, we are part of a family. We are Jesus' brothers. We are Jesus' sisters. We are Jesus' mothers (see Matthew 12:50). We have the same Father as He did.