Heaven is God’s Throne correct? And when is it you think one enters the Kingdom of Heaven? Seeing the Holy Spirit is God’s Spirit and Jesus did say God is a Spirit. Therefore, being born of said Spirit makes one a Child of the same and one can call who Jesus calls Father, Father also. So, since God is in Heaven and His Presences (Holy Spirit) is with and in the born again. Where is Heaven in relationship the born again?
Jesus never said He left Heaven while He waked in the flesh, did He?
KJV: Joh_3:13 And no man hath ascended up to heaven, but he that came down from heaven, even the Son of man which is in heaven.
Jesus also explains here where the Kingdom of God is in relationship to the born of God’s Spirit:
KJV:
Luk 17:20 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:
Luk 17:21 Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you.