The laws of the Kingdom of God are contrary to the ways of men (Mat 13:44). Hidden from the casual seeker or church-goer, the Kingdom is not superficial to be stumbled upon. It does not lie on the surface and is not obvious, it is like a treasure hidden in the field, a lost coin, or a pearl hidden in the secret place of an oyster. It is in fact, concealed, obscured from our natural perceptions.
Christ the King - the Rock of Offence
This fact brings light to the birth of Christ. The promised Messiah did not come as the anticipated Warrior-King delivering Israel from Roman control. On the contrary, born in obscurity he came as a humble Nazarene, the son of Joseph riding on a donkey. Thus, Nathaniel's statement of the Christ in John 1:46. Defying human expectation of an earthly kingdom he became a stumbling stone, the rock of offence (Rom 9:32-33). Even after associating with him as his closest friends, throughout his earthly ministry, the disciples still misunderstood the Kingdom. Despite forty days of Jesus speaking concerning the Kingdom of God, they still nursed hopes of a worldly kingdom (Acts 1:6). They still perceived the Kingdom in terms of external criteria, particularly social and political ones. However, while the Kingdom will manifest through external signs, which I will discuss in a moment, it is primarily an inner and hidden reality. It is therefore, not discernible to the natural senses or cognitive abilities.