This I can agree with ... but what then are the "clear teachings of Jesus"?
Please consider the spiritual nature of the Kingdom:
“And saying, Repent ye: for the kingdom of heaven is at hand.” (Matthew 3:2) (KJV 1900)
“And from the days of John the Baptist until now the kingdom of heaven suffereth violence, and the violent take it by force.” (Matthew 11:12) (KJV 1900)
“Verily I say unto you, There be some standing here, which shall not taste of death, till they see the Son of man coming in his kingdom.” (Matthew 16:28) (KJV 1900)
“Jesus answered and said unto him, Verily, verily, I say unto thee, Except a man be born again, he cannot see the kingdom of God.” (John 3:3) (KJV 1900)
“Jesus answered, My kingdom is not of this world: if my kingdom were of this world, then would my servants fight, that I should not be delivered to the Jews: but now is my kingdom not from hence.” (John 18:36) (KJV 1900)
“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:” (Luke 17:20) (KJV 1900)
“Neither shall they say, Lo here! or, lo there! for, behold, the kingdom of God is within you.” (Luke 17:21) (KJV 1900)
“But if I cast out demons by the finger of God, then the kingdom of God has already overtaken you.” (Luke 11:20)
“because we are not looking at what can be seen but at what cannot be seen. For what can be seen is temporary, but what cannot be seen is eternal.” (2 Corinthians 4:18)
“Now when the people saw the miraculous sign that Jesus performed, they began to say to one another, “This is certainly the Prophet who is to come into the world.”Then Jesus, because he knew they were going to come and seize him by force to make him king, withdrew again up the mountainside alone.” (John 6:14–15)