John 18:37 - Pilate therefore said to Him, "Are You a king then?" Jesus answered, "You say rightly that I am a king. For this cause I was born, and for this cause I have come into the world, that I should bear witness to the truth. Everyone who is of the truth hears My voice."
Matthew 27:37 - And they put up over His head the accusation written against Him: THIS IS JESUS THE KING OF THE JEWS.
In the Gospels Jesus talked about the kingdom of Heaven and the Kingdom of God. The only thing Jesus preaches was "the Kingdom of God".
Matthew 4:17 - From that time Jesus began to preach and to say, "Repent, for the kingdom of heaven is at hand."
Jesus came to earth to restore what Adam lost by disobedience. Adam was not given a religion therefore Jesus did not come to restore religion. Jesus came to restore kingship back to humanity.
The last Adam, Jesus, had no sin. He had exactly the same privilege that the first Adam had. He could have sinned if He chose. Jesus was a man in this world just as every man is.
Hebrews 2:16 - For verily he took not on him the nature of angels; but he took on him the seed of Abraham.
He did not take upon Him a heavenly condition. He took upon Himself the natural condition of the human race, the fallen human nature.
The great purpose of Jesus the King's coming to the world was to establish the kingdom of God. Jesus came and committed Himself publicly at His baptism at the Jordan before the entire world. He willed not to obey His own natural human will, but to do the will of the Father and to obey Him. Jesus declared: "For I came down from heaven, not to do mine own will, but the will of him that sent me" John 6:38.
In order to establish a kingdom, there must be a basis upon which it is to be founded. The kingdom is based on principles.
When Jesus came to restore His kingdom, first enunciated the principles upon which His government was to rest. The Beatitudes, as they are given in His official declaration in His sermon on the mount, were the great principles upon which His government was to be founded.
The principles of the kingdom of heaven are those underlying qualities upon which the whole structure of the Christian life rests, and the principles upon which the real government of Jesus the King will be founded and exercised.
The Beatitudes are the principles of the kingdom, the sermon on the mount is the constitution and the commandments of Jesus are its law or statutes.
The kingdom is established in the hearts of men. The principles of Jesus are settled in our own spirit. We become citizens of the kingdom of heaven. The aggregate citizenship of the kingdom in this present age constitutes the real Church, which is His body.
It is the purpose of Jesus to make the Church, which is His body, His entire representative in the world. Just as Jesus came to express God the Father to mankind, and Jesus was necessary to God, in order that H e might give an expression of Himself to the world, so the Church is necessary to Jesus the King as an expression of Himself to the world.
Jesus was the King of Glory, yet He laid down all His glory. He came to earth, took upon Himself our condition. Hebrew 2:16. He took upon Himself the condition of mankind.