unless one is born again he cannot see the kingdom of God.

That quote is not about the afterlife, it's about the character of individuals and the aggregate character of the community of believers. The Kingdom is the character of the individual believer and the aggregate character of the community they have with other believers while they are alive.

Luke 17:20-21: And when he was demanded of the Pharisees, when the kingdom of God should come, he answered them and said, The kingdom of God cometh not with observation: Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you.

No one comes to the Father except through me

He is the judge, and is described as such in multiple places. This isn't from the Bible, but is a quote about the responsibility of a judge executive:

The county judge/executive shall be the chief executive of the county and shall have all the powers and perform all the duties of an executive and administrative nature vested in, or imposed upon, the county or its fiscal court by law, or by agreement with any municipality or other subdivision of government, and such additional powers as are granted by the fiscal court. The county judge/executive shall be responsible for the proper administration of the affairs of the county placed in his charge.

Jesus' county is mankind and the creation of which they are a part.