Son of his Father: The Heir and Prince
And as a dig at Trinitarians - note that the new heavens and the new earth come from GOD - not from Jesus!John 6-46: “No man has seen The Father, except he who is from God; he himself sees The Father.” ... The only one who has seen the Father is the one who has come from him; Son.
I would assume this means there is a chain of command, with Jesus seeing/reporting to God and humans by having seen Jesus, reporting to Jesus, who can then report to God. An underling in a big company does not just walk in on the CEO, but reports to his immediate supervisor, who then can report up the chain of command.
Another practical reason one can not report directly to God, is because God created the heaven and earth in six days and on the seventh day, God rested; Divine Sabbath rest. During the earth Sabbath, which is an image of the Divine Sabbath Day, ones is not supposed to conduct business but pray and rest with family. This would explain why only the Son saw God; he was family and it was still the Divine Sabbath.
God rested on the seventh day. There is nowhere in the New and Old Testament that says how long God rested or whether he is still resting. It says one day, but one heaven day may not be one earth day. The best clue that God rested during both the Old Testament and New Testament, is the after epic scale creation of the first 6 days; create the universe, sun, planets, life, animals, humans, etc., there is nothing as epic in the entire Bible, until late Revelations. Moses did some impressive miracles, but he did not create stuff like oceans or new planet. He was more about breaking things. But at the end of the Revelations, the old heavens and earth disappear, and God is back in business, making a new heavens and earth, from scratch.
Revelation 21: Then I saw “a new heaven and a new earth,”[a] for the first heaven and the first earth had passed away, and there was no longer any sea. 2 I saw the Holy City, the new Jerusalem, coming down out of heaven from God, prepared as a bridebeautifully dressed for her husband. 3 And I heard a loud voice from the throne saying, “Look! God’s dwelling place is now among the people, and he will dwell with them. They will be his people, and God himself will be with them and be their God.4 ‘He will wipe every tear from their eyes. There will be no more death’[b] or mourning or crying or pain, for the old order of things has passed away.”
This sort of make me thinks of a second Divine Sabbath, with God surrounded by the children of God.