Jesus went to great lengths to prove that it was He who was resurrected and standing before them, that His resurrected body was indeed a body, not a ghost. He ascended into heaven and the ascension is the launching of the Kingdom. It is the launching of the New Covenant and in this New Covenant the Kingdom of God is comprised of men and women, boys and girls, of every nation, tribe, and tongue. It is comprised of believing Jews and believing Gentiles.