Luke chapter 17, vs 20 - 21 Jesus Christ speaking

… the Kingdom of God (Kingdom of Heaven) is not found with careful observation … nor … can people say … here it is … because … the Kingdom of God (Kingdom of Heaven) is within you … 

Matthew chapter 13, vs 45 Jesus Christ speaking

… the Kingdom of Heaven (Kingdom of God) … is like … a merchant who is looking for pearls … when he finds one of great value … he sells everything he has … and … buys it …

Matthew chapter 13, vs 31 - 32 Jesus Christ speaking

… the Kingdom of Heaven (Kingdom of God)  …  is  …  like a mustard seed … the smallest of seeds … when it grows it becomes the largest of garden plants … it becomes a tree …

Romans chapter 14, vs 17

… the Kingdom of God (Kingdom of Heaven) does not mean food or drink … but … righteousness … peace … and … joy … in the Spirit of God ( Holy Spirit ) …